Peer-reviewed research articles / Publications internationales avec comité de lecture
[A56] Widemann, T., Smrekar, S., Garvin, J., Straume-Lindner, A.G., Ocampo, A., Schulte, M., Voirin, T., Hensley, S., Dyar, M. D., Whitten, J., Nunes, D., Getty, S., Arney, G., Johnson, N., Kohler, E., Spohn, T., O’Rourke, J., Wilson, C., Way, M., Ostberg, C., Westall, F., Höning, D., Jacobson, S., Salvador, A., Avice, G., Breuer, D., Carter, L., Gilmore, M., Ghail, R., Helbert, J., Byrne, P., Santos, A., Herrick, R., Izenberg, N., Marcq, E., Rolf, T., Weller, M., Gillmann, C., Korablev, O., Zelenyi, L., Zasova, L., Gorinov, D., Seth, G., Narasimha Rao, Ch. V., Desai, N. 2023, Venus Evolution Through Time: Key Science Questions, Selected Mission Concepts and Future Investigations, Space Sci Rev 219, https://doi.org/10.1007/s11214-023-00992-w
[A55] Widemann, T., Knobloch, E. (2022), Introduction, Aux origines d’une science et d’une sociabilité européennes: l’Observatoire de Paris à 350 ans, Archives Internationales d’Histoire des Sciences, vol. 72, issue 189, p. 6-23, 2022. Print ISSN: 0003-9810 Online ISSN: 2507-038X. https://doi.org/10.1484/J.ARIHS.5.133702
[A54] Widemann, T. (2022), How the Meridian Line was Drawn on the Paris Observatory’s Site on Solstice Day 21 June 1667, Aux origines d’une science et d’une sociabilité européennes: l’Observatoire de Paris à 350 ans, Archives Internationales d’Histoire des Sciences, vol. 72, issue 189, p. 56-73, 2022. Print ISSN: 0003-9810 Online ISSN: 2507-038X. https://doi.org/10.1484/J.ARIHS.5.133705
[A53] Wilson, C., Marcq, E., Gillmann, C., Widemann, T., Korablev, O., Mueller, N., Lefèvre, M., Rimmer, P., Robert, S., and Molotov, M. (2023), Magmatic Volatiles and Effects on the Modern Atmosphere, Space Sciences Series Vol. 87, Venus: Evolution Through Time, ISSI Workshop held in Sep. 2021, to be published 2023, in review.
[A52] Kiefer, F., G. Hébrard, E. Martioli, E. Artigau, R. Doyon, J.-F. Donati, C. Cadieux, A. Carmona, D. R. Ciardi, P. I. Cristofari, L. de Almeida, P. Figueira, E. Gaidos, E. Gonzales, A. Lecavelier, K. G. Stassun, L. Arnold, B. Benneke, I. Boisse, X. Bonfils, N. J. Cook, P. Cortés-Zuleta, X. Delfosse, M. Fausnaugh, W. Fong, P. Fouqué, T. Forveille, J. Gomes da Silva, K. Hesse, Á. Kóspál, H. Lewis, C.-F. Liu, J. H. C. Martins, M. Paegert, S. Seager, H. Shang, J. D. Twicken, T. Vandal, S. Vinatier, Widemann T., J. N. Winn (2023), A sub-Neptune planet around TOI-1695 discovered and characterized with SPIRou and TESS, Astron. Astrophys., Volume 670, id.A136, 28. https://doi.org/10.1051/0004-6361/202245129
[A51] Wilson, C.F., Widemann, T., Ghail, R. (2022), Venus: key to understanding the evolution of terrestrial planets, Experimental Astronomy 54, 575-595, https://doi.org/10.1007/s10686-021-09766-0
[A50] Lee, Y.J., Garcia Munoz, A., Yamazaki, A., Quémerais, E., Mottola, S., Hellmich, S., Granzer, T. , Bergond,, G., Roth, M., Gallego-Cano, E., Chaufray, J.-Y., Robidel, R., Murakami, G., Masunaga, K., Kaplan, M., Erece, O., Hueso, R., Kabath, P., Spokova, M., Sanchez-Lavega, A., Kim, M.-J., Mangano, V., Jessup, K.-L., Widemann, T., Sugiyama, K., Watanabe, S., Yamada, M., Satoh, T., Nakamura, M., Imai, M., Cabrera, J., Reflectivity of Venus’ dayside disk during the 2020 observation campaign): outcomes and future perspectives, Earth and Planetary Astrophysics.
https://doi.org/10.48550/arXiv.2207.13495
[A49] Marques Oliveira, J. Sicardy, B., Gomes-Júnior, A.R., Ortiz, J.L., Strobel, D.F. , Bertrand, T. , Forget, F., Lellouch, E., Desmars, J., Bérard, D., Doressoundiram, A., Lecacheux, J., Leiva, R., Meza, E., Roques, F., Souami, D., Widemann, T. et al. 2022, Constraints on the structure and seasonal variations of Triton’s atmosphere from the 5 October 2017 stellar occultation and previous observations, Astron. Astrophys., Volume 659, id. A136. https://doi.org/10.1051/0004-6361/202141443
[A48] Machado, P., Widemann, T., Peralta, J., Gilli, G., Espadinha, D., Silva, J.E., Brasil, F., Ribeiro, J., Gonçalves, R., Venus Atmospheric Dynamics at Two Altitudes: Akatsuki and Venus Express Cloud Tracking, Ground-Based Doppler Observations and Comparison with Modelling. Atmosphere 2021, 12, 506. doi.org/10.3390/atmos12040506
[A47] Encrenaz, T., Greathouse, T.K., Marcq, E., Widemann, T., Bézard, B., Fouchet, T., Giles, R., Sagawa, H., Greaves, J., and Sousa-Silva, C. 2020, A stringent upper limit of the PH2 abundance at the cloud top of Venus, Vol.643, L4, doi 10.1051/0004-6361/202039559.
[A46] Encrenaz, T., Greathouse, T.K., Marcq, E., Sagawa, H., Widemann, T., Bézard, B., Fouchet, T., Lefèvre, F., Lebonnois, S., Atreya, S.K., Lee, Y. J., Giles, R., Watanabe, S., Shao, W., Zhang, X., and Bierson, C.J. 2020, HDO and SO2 thermal mapping on Venus. V. Evidence for a long-term anti-correlation, Astronomy & Astrophysics, Vol.639, A69, doi 10.1051/0004-6361/202037741.
[A45] Gonçalves, R., Machado, P., Widemann, T., Peralta, J., Watanabe, S., Yamazaki, A., Satoh, T., Takagi, M., Ogohara, K., Lee, Y. J., Harutyunyan, A., Silva, J. 2020, Venus’ cloud top wind study: Coordinated Akatsuki/UVI with cloud tracking and TNG/HARPS-N with Doppler velocimetry observations, Icarus Volume 335, article id. 113418, 10.1016/j.icarus.2019.113418.
[A44] Encrenaz, T., Greathouse, T.K., Marcq, E., Sagawa, H., Widemann, T., Bézard, B., Fouchet, T., Lefèvre, F., Lebonnois, S., Atreya, S.K., Lee, Y. J., Giles, R. and Watanabe, S. 2019, HDO and SO2 thermal mapping on Venus. IV. Statistical analysis of the SO2 plumes, Astronomy & Astrophysics, Volume 623, id. A70, 11 pp.
[A43] Gaulme, P., Schmider, F.-X., Widemann, T., Gonçalves, I., Ariste, A.-L., and Gelly, B. 2019, Atmospheric circulation of Venus measured with visible imaging spectroscopy at the THEMIS observatory, Astron. Astrophys. Vol. 627, A82.
[A42] Meza, E., Sicardy, B., Assafin, M., Ortiz, J.-L., Bertrand, T., Lellouch, E., Desmans, J., Forget, F., Bérard, D., Doressoundiram, A., Lecacheux, J., Marques Oliveira, J., Roques, F., Widemann, T., Colas, F., Vachier, F., Renner, S., Leiva, R., Braga-Ribas, F., Benedetti-Rossi, G. et al. 2019, Lower atmosphere and pressure evolution on Pluto from ground-based stellar occultations 1988-2016, Astron. Astrophys. 625, A42; doi:10.1051/0004-6361/201834281.
[A41] Dias-Oliveira, A.; Sicardy, B.; Ortiz, J. L.; Braga-Ribas, F.; Leiva, R.; Vieira-Martins, R.; Benedetti-Rossi, G.; Camargo, J. I. B.; Assafin, M.; Gomes-Júnior, A. R. (…), Widemann, T., (…) [53 co-authors] 2017, Study of the Plutino Object (208996) 2003 AZ84 from Stellar Occultations: Size, Shape, and Topographic Features, Astron. J. Vol. 154, 22 (13pp).
[A40] Peralta, J., Lee, Y.J., McGouldrick, K., Sagawa, H., Sánchez-Lavega, A., Imamura, T.; Widemann, T.; Nakamura, M., Overview of useful spectral regions for Venus: An update to encourage observations complementary to the Akatsuki mission, Icarus Vol. 288, pp. 235-239, doi:10.1016/j.icarus.2017.01.027
[A39] Piccialli, A., Moreno, R., Encrenaz, T., Fouchet, T., Lellouch, E. and Widemann, T. 2017, Mapping the thermal structure and minor species of Venus mesopshere with ALMA submillimeter observations, Astron. Astrophys., 606, A53, pp.1-17.
[A38] Machado, P., Widemann, T., Peralta, J., Gonçalves, R., Donati, J.-F., Luz, D. 2017, Venus Cloud-Tracked and Doppler Velocimetry winds from CFHT/ESPaDOnS and Venus Express/VIRTIS in April 2014, Icarus, Vol. 285, pp. 8-26.
[A37] Encrenaz, T., Greathouse, T.K., Richter, M.J., DeWitt, C., Widemann, T., Bézard, B., Fouchet, T., Atreya, S.K., and Sagawa, H. 2016, HDO and SO2 thermal mapping on Venus. III. Short-term and Long-term variations between 2012 and 2016, Astronomy & Astrophysics, Volume 595, id.A74, 15 pp.
[A36] Pere, C., P. Tanga, T. Widemann, Ph. Bendjoya, A. Mahieux, V. Wilquet, and A.C. Vandaele 2016, A Multilayer modeling of the aureole photometry during the Venus transit: comparison between SDO/HMI and VEx/SOIR dataAstronomy and Astrophysics, Volume 595, id.A115, 9 pp.
[A35] Tinetti, A., Drossart, P., Eccleston, P, Hartogh, P., (…), Widemann, T., (…) [240 authors] 2015, The EchO science case, Experimental Astronomy, Dec. 2015, Vol. 40, Issue 2, pp. 329-391.
[A34] Dias-Oliveira, A., Sicardy, B., Lellouch, E., Vieira-Martins, R., Assafin, M., Camargo, J.I.B., Braga-Ribas, F., Gomes-Junior, A. R., Benedetti-Rossi, G., Colas, F., Decock, A., Doressoundiram, A., Dumas, C., Emilio, M., Fabrega Polleri, J., Gil-Hutton, R., Gillon, M., Girard, J., Hau, G., Ivanov, V. D., Jehin, E., Lecacheux, J., Leiva, R., Lopez-Sisterna, C., Mancini, L., Maury, A., Meza, E., Morales, N., Nagy, L., Opitom, C., Ortiz, J. L., Pollock, J., Roques, F., Snodgrass, C., Soulier, J.F., Thirouin, A., Vanzi, L., Widemann, T., Reichart, D. E., LaCluyze, A. P., Haislip, J. B., Ivarsen, K. M., Dominik, M., Jørgensen, U., Skottfelt, J. 2015, Pluto’s atmosphere from Stellar Occultations in 2012 and 2013, Astrophys. J., 811:53.
[A33] Luz, D., Read, P., Widemann, T., Piccioni, G., Drossart, P., 2015, A first quantitative comparison between the Venus polar vortex and terrestrial hurricanes, submitted.
[A32] Limaye, S.S., Bougher, S., Chamberlain, S., Clancy, R.T., Gilli, G., Grassi, D., Haus, R., Herrmann, M., Imamura, T., Kohler, E., Krause, P., Lebonnois, S., Mahieux, A., Migliorini, A., Montmessin, F., Paetzold, M., Piccialli, A., Rengel, M., Rodin, A., Sandor, B., Sornig, M., Svedhem, H., Tellmann, S., Vandaele, A.C., Widemann, T., Wilson, C., Müller-Wodarg, I., Zasova, L. 2015, Venus Atmospheric Structure : Intercomparison of recent observations of thermal structure and density as a step towards updating the Venus International Reference Atmosphere, Icarus, Vol. 294, p.124-155.
[A31] Reale, F., Gambino, A.F., Micela, G., Maggio, A., Widemann, T., and Piccioni, G. 2015, The transit of Venus : probing the upper planetary atmosphere, Nature Communications, DOI :10.1038/ncomms8563.
[A30] Marcq, E., Lellouch, E., Encrenaz, T., Widemann, T., Birlan, M., and Bertaux, J.L. 2015, Search for horizontal and vertical variations of CO in the day and night sides of lower mesosphere of Venus from CSHELL/IRTF 4.53 µm observations. Plan. Space Sci., doi:10.1016/j.pss.2014.12.013
[A29] Machado, P., Widemann, T., Luz, D. and Peralta, J. 2014, Wind circulation regimes at Venus’ cloud tops : Ground-based Doppler velocimetry using CFHT/ESPaDOnS and comparison with simultaneous cloud tracking measurements using VEx/VIRTIS in February 2011, Icarus 243, 249-263.
[A28] Braga-Ribas, F.., B. Sicardy, J. L. Ortiz, C. Snodgrass, F. Roques, R. Vieira-Martins, J. I. B. Camargo, M. Assafin, R. Duffard, E. Jehin, J. Pollock, R. Leiva, M. Emilio, D. I. Machado, C. Colazo, E. Lellouch, J. Skottfelt, M. Gillon, N. Ligier, L. Maquet, G. Benedetti-Rossi, A. Ramos Gomes Jr, P. Kervella, H. Monteiro, R. Sfair, M. El Moutamid, G. Tancredi, J. Spagnotto, A. Maury, N. Morales, R. Gil-Hutton, S. Roland, A. Ceretta, S-h. Gu, X-b. Wang, K. Harpsøe, M. Rabus, J. Manfroid, C. Opitom, L. Vanzi, L. Mehret, L. Lorenzini, E. M. Schneiter, R. Melia, J. Lecacheux, F. Colas, F. Vachier, T. Widemann, L. Almenares, R. G. Sandness, F. Char, V. Perez, P. Lemos, N. Martinez, U. G. Jørgensen, M. Dominik, F. Roig, D. E. Reichart, A. P. LaCluyze, J. B. Haislip, K. M. Ivarsen, J. P. Moore, N. R. Frank & D. G. Lambas 2014, A ring system detected around the Centaur (10199) Chariklo, Nature, Vol. 508, Issue 7494, pp. 72-75. doi:10.1038/nature13155.
[A27] Boissel, Y., B. Sicardy, F. Roques, P. Gaulme, A. Doressoundiram, T. Widemann, V.D. Ivanov, O. Marco, E. Mason, N. Ageorges, O. Mousis, P. Rousselot, V. S. Dhillon, S. P. Littlefair, T. R. Marsh, M. Assafin, F. Braga Ribas, D. da Silva Neto, J.I.B. Camargo, A. Andrei, R. Vieira Martins, R. Behrend, and M. Kretlow 2014, An exploration of Pluto’s environment through stellar occultations, Astr. Astrophys., 561, A144.
[A26] O. Mousis, R. Hueso, J.-P. Beaulieu, S. Bouley, B. Carry, F. Colas, A. Klotz, C. Pellier, J.-M. Petit, P. Rousselot, M. Ali Dib, W. Beisker, M. Birlan, C. Buil, A. Delsanti, E. Frappa, H. B. Hammel, A.-C. Levasseur-Regourd, G. S. Orton, A. Sanchez-Lavega, A. Santerne, P. Tanga, J. Vaubaillon, B. Zanda, D. Baratoux, T. Bohm, V. Boudon, A. Bouquet, L. Buzzi, J.-L. Dauvergne, A. Decock, M. Delcroix, P. Drossart, N. Esseiva, G. Fischer, L. N. Fletcher, S. Foglia, J. M. Gomez-Forrellad, J. Guarro-Flo, D. Herald, F. Kugel, J.-P. Lebreton, J. Lecacheux, A. Leroy, L. Maquet, G. Masi, A. Maury, F. Meyer, S. Perez-Hoyos, A. S. Rajpurohit, C. Rinner, J. H. Rogers, F. Roques, R. W. Schmude, Jr., B. Sicardy, B. Tregon, M. Vanhuysse, A. Wesley, and T. Widemann 2014, Instrumental Methods for Professional and Amateur Collaborations in Planetary Astronomy, Experimental Astronomy, DOI 10.1007/s10686-014-9379-0.
[A25] Encrenaz, T., Greathouse, T.K., Richter, M.J., Lacy, J., Widemann, T., Bézard, B., Fouchet, T., deWitt, C. and Atreya, S.K. 2013, HDO and SO2 thermal mapping on Venus. II. The SO2 spatial distribution above and within the clouds, Astron.Astrophys., Volume 559, id.A65, 9p.
[A24] Braga-Ribas, F., B. Sicardy, J. L. Ortiz, E. Lellouch, G. Tancredi, J. Lecacheux, R. Vieira-Martins, J. I. B. Camargo, M. Assafin, R. Behrend, F. Vachier, F. Colas, N. Morales, A. Maury, M. Emilio, A. Amorim, E. Unda-Sanzana, S. Roland, S. Bruzzone, L. A. Almeida, C. V. Rodrigues, C. Jacques, R. Gil-Hutton, L. Vanzi, A. C. Milone, W. Schoenell, R. Salvo, L. Almenares, E. Jehin, J. Manfroid, S. Sposetti, P. Tanga, A. Klotz, E. Frappa, P. Cacella, J. P. Colque, C. Neves, E. M. Alvarez, M. Gillon, E. Pimentel, B. Giacchini, F. Roques, T. Widemann, V. S. Magalhães, A. Thirouin, R. Duffard, R. Leiva, I. Toledo, J. Capeche, W. Beisker, J. Pollock, C. E. Cedeño Montaña, K. Ivarsen, D. Reichart, J. Haislip, and A. Lacluyze 2013, The Size, Shape, Albedo, Density, and Atmospheric Limit of Transneptunian Object (50000) Quaoar from multi-chord Stellar Occultations, Astrophys. J. 773, 1, p. 26 – doi:10.1088/0004-637X/773/1/26.
[A23] Ortiz, J.L., Sicardy, B., Braga-Ribas, F., Alvarez-Candal, A., Lellouch, E., Duffard, R., Pinilla-Alonso, N., Ivanov V.D., Littlefair, S.P., Camargo, J.I.B., Assafin M., Unda-Sanzana, E., Jehin, E., Morales, N., Tancredi, G., Gil-Hutton, R., de la Cueva, I., Colque, J.P., Da Silva Neto, D.N., Manfroid, J., Thirouin, A., Gutiérrez, P.J., Lecacheux, J., Gillon, M., Maury, A., Colas, F., Licandro, J., Mueller, T., Jacques, C., Weaver, D., Milone, A., Salvo, R., Bruzzone, S., Organero, F., Behrend, R., Roland, S., Vieira-Martins, R., Widemann, T., Roques, F., Santos-Sanz, P., Hestroffer, D., Dhillon, V.S., Marsch, T.R., Harlingten, C., Campo Bagatin, A., Alonso, M.L., Ortiz, M., Colazo, C., Lima, H., Oliveira, A., Kerber, L.O., Smiljanic, R., Pimentel, E., Giacchini, B., Cacella, P., Emilio, M. 2012, Albedo and atmospheric constraints of dwarf planet Makemake from a stellar occultation, Nature, Volume 491, Issue 7425, pp. 566-569 (2012)
[A22] Encrenaz, T., Greathouse, T. K., Roe, H., Richter, M., Lacy, J., Bézard, B., Fouchet, T., Widemann, T. 2012, HDO and SO2 thermal mapping on Venus: Evidence for strong SO2 variability, Astr. Astrophys. 543, A153.
[A21] Machado, P., Luz, D., Widemann, T, Lellouch, E., Witasse, O. 2012, Mapping zonal winds at Venus’ cloud tops from ground-based Doppler velocimetry, Icarus 221, 248-261.
[A20] Tanga, P., Widemann, T., Sicardy, B., Pasachoff, J., Arnaud, J., Comolli, L., Rondi, A., Rondi, S., Suetterlin, P. 2011, Sunlight refraction in the mesosphere of Venus during the transit on June 8th, 2004 (2012), Icarus 218, 207-219, arXiv:1112.3136.
[A19] Tinetti G., Beaulieu J.P., Henning T., Meyer M., Micela G., Ribas I., Stam D., Swain M., Krause O., Ollivier M., Pace E., Swinyard B., Aylward A., van Boekel R., Coradini A., Encrenaz T., Snellen I., Bouwman J., Cho J. Y-K., Coudé du Foresto V., Guillot T., Mueller-Wodarg I., Palle E., Selsis F., Sozzetti A., Ade P.A.R., Achilleos N., Adriani A., Agnor C. B., Afonso C., Allende Prieto C., Bakos G., Barber R. J., Barlow M., Bernath P., Bézard B., Bordé P., Brown L.R., Cassan A., Cavarroc C., Ciaravella A., Cockell, C., Coustenis A., Danielski C., Decin L., De Kok R., Demangeon O., Deroo P., Doel P., Drossart P., Fletcher L.N., Focardi M., Forget F., Fossey S., Fouqué P., Frith J., Galand M., Gaulme P., González Hernández J.I. (IAC), Grasset O., Grassi D., Grenfell J. L., Griffin M. J., Griffith C. A., Grözinger U., Guedel M., Guio P., Hainaut O., Hargreaves R., Hauschildt P. H., Heng K., Heyrovsky D., Hueso R., Irwin P., Kaltenegger L., Kervella P., Kipping D., Koskinen T.T., Kovács G., La Barbera A., Lammer H., Lellouch E., Leto G., Lopez Morales M., Lopez Valverde M.A., Lopez-Puertas M., Lovis C., Maggio A., Maillard J.P., Maldonado Prado J., Marquette J.B., Martin-Torres F.J., Maxted P., Miller S., Molinari S., Montes D., Moro-Martin A., Moses J.I., Mousis O., Nguyen Tuong N., Nelson R., Orton G.S., Pantin E., Pascale E., Pezzuto S., Pinfield D., Poretti E., Prinja R., Prisinzano L., Rees J.M., Reiners A., Samuel B., Sánchez-Lavega A., Sanz Forcada J., Sasselov D., Savini G., Sicardy B., Smith A., Stixrude L., Strazzulla G., Tennyson J., Tessenyi M., Vasisht G., Vinatier S., Viti S., Waldmann I., White G.J., Widemann T.,Wordsworth R., Yelle R., Yung Y., Yurchenko S.N. 2012, EChO, Exoplanet characterisation observatory, Experimental Astronomy, DOI 10.1007/s10686-012-9303-4, Aug. 2012.
[A18] Ehrenreich, D., Vidal-Madjar, A., Widemann, T., Gronoff, G., Tanga, P., Barthélemy, M., Lilensten, J., Lecavelier des Etangs, A. and Arnold, L. 2011,Transmission spectrum of Venus as a transiting exoplanet, Astronomy & Astrophysics 527, L2, DOI: 10.1051/0004-6361/201118400, arXiv:1112.0572.
[A17] Sicardy, B., J. L. Ortiz, M. Assafin, E. Jehin, A. Maury, E. Lellouch, R. Gil Hutton, F. Braga-Ribas, F. Colas, D. Hestroffer, J. Lecacheux, F. Roques, P. Santos Sanz, T. Widemann, N. Morales, R. Duffard et al. 2011, A radius of 1163 km and an albedo of 0.96 for Eris from a stellar occultation, 2011, Nature, Vol. 478, p. 493-496, 27 October 2011.
[A16] G. Tinetti, J.Y.K. Cho, C.A. Griffith, O. Grasset, L. Grenfell, T. Guillot, T.T. Koskinen, J.I. Moses, D. Pinfield, J. Tennyson, M. Tessenyi, R. Wordsworth, A. Aylward, R. van Boekel, A. Coradini, T. Encrenaz, I. Snellen, M.R. Zapatero-Osorio, J. Bouwman, V.C. du Foresto, M. Lopez-Morales, I. Mueller-Wodarg, E. Pall ́e, F. Selsis, A. Sozzetti, J.P. Beaulieu, T. Hen- ning, M. Meyer, G. Micela, I. Ribas, D. Stam, M. Swain, O. Krause, M. Ollivier, E. Pace, B. Swinyard, P.A.R. Ade, N. Achilleos, A. Adriani, C.B. Agnor, C. Afonso, C.A. Prieto, G. Bakos, R.J. Barber, M. Barlow, P. Bernath, B. Bézard, P. Bordé, L.R. Brown, A. Cassan, C. Cavarroc, A. Ciaravella, C. Cockell, A. Coustenis, C. Danielski, L. Decin, R. De Kok, O. Demangeon, P. Deroo, P. Doel, P. Drossart, L.N. Fletcher, M. Focardi, F. Forget, S. Fossey, P. Fouqué, J. Frith, M. Galand, P. Gaulme, J.I.G. Herna ́ndez, D. Grassi, M.J. Griffin, U. Grözinger, M. Guedel, P. Guio, O. Hainaut, R. Hargreaves, P.H. Hauschildt, K. Heng, D. Heyrovsky, R. Hueso, P. Ir- win, L. Kaltenegger, P. Kervella, D. Kipping, G. Kovacs, A.L. Barbera, H. Lammer, E. Lellouch, G. Leto, M.L. Morales, M.A.L. Valverde, M. Lopez-Puertas, C. Lovi, A. Maggio, J.P. Maillard, J.M. Prado, J.B. Marquette, F.J. Martin-Torres, P. Maxted, S. Miller, S. Molinari, D. Montes, A. Moro-Martin, O. Mousis, N.N. Tuong, R. Nelson, G.S. Orton, E. Pantin, E. Pascale, S. Pezzuto, E. Poretti, R. Prinja, L. Prisinzano, J.M. Reess, A. Reiners, B. Samuel, J.S. Forcada, D. Sasselov, G. Savini, B. Sicardy, A. Smith, L. Stixrude, G. Strazzulla, G. Vasisht, S. Vinatier, S. Viti, I. Waldmann, G.J. White, T. Widemann, R. Yelle, Y. Yung, S. Yurchenko, in IAU Symposium, IAU Symposium, vol. 276, ed. by A. Sozzetti, M. G. Lattanzi, & A. P. Boss (2011), IAU Symposium, vol. 276, pp. 359–370. DOI 10.1017/S1743921311020448
[A15] Pasachoff, J.M., G. Schneider, and T. Widemann 2011, High-Resolution Satellite Imaging of the 2004 Transit of Venus and Asymmetries In the Cytherean Atmosphere, Astronomical Journal, 141, 112.
[A14] Sicardy, B., Bolt, G., Frappa, E., Lecacheux, J., Peyrot, A., Teng-Chuen-Yu, J.-P., Beisker, W., Boissel, Y., Buckley, D., Colas, F., de Witt, C., Doressoundiram, A., Roques, F., Widemann, T., Gruhn, C., Batista, V., Biggs, J., Dieters, S., Greenhill, J., Groom, R., Herald, D., Lade, B., Mathers, S., Assafin, M., Camargo, J.I.B., Vieira Martins, R., Andrei, A. H., da Silva Neto, D.N., Brago-Ribas, F., Behrend, R. 2010, Constraints on Charon’s orbital elements from the double stellar occultation of 2008 June 22, The Astronomical Journal, Volume 141, Issue 2, article id. 67 (2011). DOI:10.1088/0004-6256/141/2/67.
[A13] Roques, F., Boissel, Y., Doressoundiram, A., Sicardy, B., and Widemann, T. 2009, Exploration of the Outer Solar System by Stellar Occultations, Earth, Moon, and Planets, 105, 201-208. Download pdf
[A12] Widemann, T., B. Sicardy, R. Dusser, C. Martinez, W. Beisker, E. Bredner, D. Dunham, P. Maley, E. Lellouch, J.-E. Arlot, J. Berthier, F. Colas, W.B. Hubbard, R. Hill, J. Lecacheux, J.-F. Lecampion, S. Pau, M. Rapaport, F. Roques, W. Thuillot, et al. 2009, Titania’s Radius and an Upper Limit on its Atmosphere from the September 8, 2001 Stellar Occultation, Icarus 199, Vol. 2, pp. 458-476. Download pdf
[A11] Widemann, T., Lellouch, E., Donati, J.-F., 2008, Venus Doppler winds at Cloud Tops Observed with ESPaDOnS at CFHT, Planetary and Space Science, Special issue on Ground-based measurements in support of Venus Express, 56, 1320-1334. Download pdf
[A10] Gaulme, P., Schmieder, F.-X., Grec, C., Ariste, A. L., Widemann, T., and Gelly, B. 2008, Venus wind map at cloud top level with the MTR/Themis visible spectrometer, I – Instrumental performance and first results, Planetary and Space Science, Special issue on Ground-based measurements in support of Venus Express, 56, 1335-1343. Download pdf
[A9] Widemann, T., Lellouch, E., and Campargue, A. 2007, New Wind Measurements in Venus’ Lower Mesosphere From Visible Spectroscopy, Planetary and Space Science, Special Venus issue Vol. 2, 55, 1741-1756. Download pdf
[A8] Sicardy, B., Colas, F., Widemann, T., Beisker, W., Kretlow, M., Ferri, F., Lacour, S., Lecacheux, J., Lellouch, E., Pau, S., Renner, S., Roques, F., Fienga, A., et al. 2006, The two Titan stellar occultations of 14 November 2003, J. Geophys. Res., Vol. 111, E11S91. Download pdf
[A7] Sicardy, B., Bellucci, A., Gendron, E., Lacombe, F., Lacour, S., Lecacheux, J., Lellouch, E., Renner, S., Pau, S., Roques, F., Widemann, T., Colas, F., et al. 2006, Charon : Size and Constraints on the Atmosphere From a Stellar Occultation, Nature, vol. 439, 52-54, 5 January 2006.
[A6] Sicardy, B., Widemann, T., Lellouch, E., Veillet, C., Cuillandre, J.-C et al. 2003, Large Changes In Pluto’s Atmosphere As Revealed By Recent Stellar Occultations, Nature, vol. 424, 168-170, 10 July 2003. Download pdf
[A5] Raynaud, E., Drossart, P., Matcheva, K., Sicardy, B., Hubbard, W. B., Roques, F., Widemann, T., Gladstone, G. R., Waite, J. H., Nadeau, D., Bastien, P., Doyon, R., Hill, R., Rieke, M. J., And Marley, M. 2003, The 10 October 1999 HIP 9369 Occultation by The Northern Polar Region of Jupiter: Ingress and Egress Lightcurves Analysis, Icarus, 162, 2, 344-361.
[A4] Fegley, B., Klingelhofer, G., Lodders, K., Widemann, T. 1997, Geochemistry of Surface-Atmosphere Interactions on Venus, Venus II, S.W. Bougher, D.M. Hunten, & R.J. Phillips Eds., University of Arizona Press, Tucson, pp. 591-636.
[A3] Bertaux, J.L., Widemann, T., Hauchecorne, A., Moroz, V.I., Ekonomov, A.P. 1996, Vega-1 and Vega-2 Entry Probes: an Investigation of Local UV Absorption (220 – 400 nm) In The Atmosphere of Venus (SO2, Aerosols, Cloud Structure), Journ. Geophys. Research, Vol. 101, N°E5, pp. 12709-12745.
[A2] Widemann, T., Bertaux, J.L., Querci, F., Querci, M. 1994, High Resolution Spectroscopy of Stars Through Telluric Water Vapor Absorption Band Near 936 nm, I.- Methodology and First Results, Astron. Astrophys. 282, 879.
[A1] Bertaux, J. L., Megie, G., Widemann, T., Chassefière, E., Pellinen, R., Kyrola, E., Korpela, S., and Simon, P. 1991, Monitoring of ozone trend by stellar occultations: The Gomos instrument. Adv. Space Res., 11(3) :237-242.
Communications in international conferences with published abstracts/Conférences internationales avec publication des résumés
2024
Encrenaz, T., Greathouse, T., Giles, R., Widemann, T., Bezard, B., Lefevre, F., Lefevre, M., Shao, W., Sagawa, H., Marcq, E., and Arredondo, A.: Ground-based thermal mapping of Venus: HDO and SO2 monitoring and upper limits of NH3, PH3 and HCN at the cloud top, EGU General Assembly 2024, Vienna, Austria, 14–19 Apr 2024, EGU24-4022, https://doi.org/10.5194/egusphere-egu24-4022, 2024.
2022
Widemann, T., Ghail, R., Wilson, C., Titov, D., Straume, A. G., Ocampo, A., Bocanegra-Bahamon, T., Bruzzone, L., Campbell, B., Carter, L., Dumoulin, C., Gilli, G., Helbert, J., Hensley, S., Kiefer, W., Marcq, E., Mason, P., Moreira, A., and Vandaele, A. C.: The EnVision Mission to Venus, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-8391, https://doi.org/10.5194/egusphere-egu22-8391, 2022.
2020
[C157] Marcq, E.; Guignan, G.; Lustrement, B.; Montmessin, F.; Lasue, J.; Bézard, B.; Vandaele, A C.; Helbert, J.; Widemann, T.; Wilson, C.; Ghail, R. 2020, Monitoring Venus cloud top: the VenSpec-U spectrometer on board ESA EnVision, 14th Europlanet Science Congress 2020, held virtually, 21 September 2020 – 9 October, 2020. Online at https://www.epsc2020.eu/, id. EPSC2020-622.
[C156] Ghail, R.; Wilson, C.; Widemann, T.; Titov, D.; Ansan, V.; Bovolo, F.; Breuer, D.; Bruzzone, L.; Campbell, B.; Dumoulin, C.; Helbert, J.; Hensley, S.; Kiefer, W.; Komatsu, G.; Le Gall, A.; Marcq, E.; Mason, P.; Robert, S.; Rosenblatt, P.; Vandaele, A.C. 2020, The science goals of the EnVision Venus orbiter mission, 14th Europlanet Science Congress 2020, held virtually, 21 September 2020 – 9 October, 2020. Online at https://www.epsc2020.eu/, id. EPSC2020-599
[C155] Gonçalves, R., Machado, P., Widemann, T. 2020, Venus’ cloud top wind study: new Doppler velocimetry measurements, 14th Europlanet Science Congress 2020, held virtually, 21 September 2020 – 9 October, 2020. Online at https://www.epsc2020.eu/, id. EPSC2020-307
[C154] Helbert, J.; Dyar, D.; Walter, I.; Ryan, C.; Marcq, E.; Widemann, T.; Reess, J.-M.; Maturilli, A.; Müller, N.; Kappel, D.; Alemanno, G.; Arnold, G.; D’Amore, M.; Rosas-Ortiz, Y.; Smrekar, S.; Ghail, R.. 2020, The Venus Emissivity Mapper ─ Obtaining Global Mineralogy of Venus from Orbit on the ESA EnVision and NASA VERITAS missions to Venus, 14th Europlanet Science Congress 2020, held virtually, 21 September 2020 – 9 October, 2020. Online at https://www.epsc2020.eu/, id. EPSC2020-260
[C153] Smrekar, S. E., Hensley, S., Dyar, M. D., Helbert, J., Andrews-Hanna, J., Breuer, D., Buczkowski, D., Campbell, B., Davaille, A., DiAchille, G., Fassett, C., Gilmore, M., Herrick, R., Iess, L., Jozwiak, L., Konopliv, A., Mastrogiuseppe, M., Mazerico, E., Mueller, N., Nunes, D., Stock, J., Tsang, C., Whitten, J., Widemann, T., Zebker, H. 2020, Veritas (Venus Emissivity, Radio Science, Insar, Topography, and Spectroscopy): A Proposed Discovery Mission, 51st Lunar and Planetary Science Conference, held 16-20 March, 2020 at The Woodlands, Texas. LPI Contribution No. 2326, 2020, id.1449.
[C152] Helbert, J., Dyar, M.D., Izenberg, N.R., Ghail, R.C., Garvin, J.B., Byrne, P.K., Smrekar, S.E., Gilmore, M., Widemann, T., Beauchamp, P. M., Shaji, N., Zasova, L. 2020, 51st Lunar and Planetary Science Conference, held 16-20 March, 2020 at The Woodlands, Texas. LPI Contribution No. 2326, 2020, id.1427.
[C151] Widemann, T., Ghail, R., Wilson, C.F., Titov, D.V. 2020, EnVision: Europe’s Proposed Mission to Venus, Exoplanets in Our Backyard: Solar System and Exoplanet Synergies on Planetary Formation, Evolution, and Habitability, held 5-7 February, 2020 in Houston, TX. LPI Contribution No. 2195, 2020, id.3024.
2019
[C150] Dyar, M.D., Helbert, J., Maturilli, A., Varatharajan, I., Widemann, T. 2019, Interpreting Venus Surface Spectra from Orbit: Insights in Rock Type and Oxidation from Laboratory Data, American Geophysical Union Fall Meeting, San Francisco CA, Dec 9-13 2019; Session New Views of Venus: Science, Technology, and Missions, Session ID#76247.
[C149] Helbert, J., Dyar, M.D., Maturilli, A., Alemanno, G., Varatharajan, I., Widemann, T. 2019, We need a global composition map of Venus and orbital infrared spectroscopy is the way to get it, American Geophysical Union Fall Meeting, San Francisco CA, Dec 9-13 2019; Session New Views of Venus: Science, Technology, and Missions, Session ID#76247.
[C148] Widemann, T., Ghail, R., Wilson, C.F., Titov, D.V. 2019, EnVision M5 Venus Orbiter Proposal, American Geophysical Union Fall Meeting, San Francisco CA, Dec 9-13 2019; Session New Views of Venus: Science, Technology, and Missions, Session ID#76247.
[C147] Helbert, J., Vandaele, A.C., Marcq, E., Robert, S., Ryan, C., Guignan, G., Rosas-Ortiz, Y., Neefs, E., Thomas, I.R., Arnold, G., Peter, G., Widemann, T., Lara, L. 2019, The VenSpec suite on the ESA EnVision mission to Venus, SPIE Proc. Vol.11128, Infrared Remote Sensing and Instrumentation XXVII, San Diego, CA, 1112804 (2019); doi: 10.1117/12.2529248.
[C146] Dyar, M.D., Helbert, J., Maturilli, A., Widemann, T., Marcq, E., Wendler, D., Walter, I., D’Amore, M., Allemano, G., Müller, N., Smrekar, S. 2019, Leveraging Rock Type, Mineralogy, and Oxidation State from Six-Window Emissivity Spectra at 440C, EPSC Abstracts Vol. 13, EPSC-DPS2019-1822-1, 2019.
[C145] Robert, S., Vandaele, A. C., Neefs, E., Jacobs, L., Berkenbosch, S., Thomas, I.R., Helbert, J., Marcq, E., Wilson, C., Bézard, B., Widemann, T., Ghail, R. 2019, VenSpec-H, infrared spectrometer onboard EnVision to study Venus’ volcanism, EPSC Abstracts Vol. 13, EPSC-DPS2019-1670-1, 2019.
[C144] Ghail, R., Wilson, C.F., Widemann, T., Titov, D.,Bruzzone, L., Helbert, J., Vandaele, A. C., Marcq, E., Dumoulin, C., Rosenblatt, P. and the EnVision Team 2019, EPSC Abstracts Vol. 13, EPSC-DPS2019-1611-2, 2019.
[C143] Rosenblatt, P., Dumoulin, C., Tellmann, S., Kaspi, Y., Fienga, A., Marty, J.-C., Withers, P., Ghail, R., Wilson, C. and Widemann, T. 2019, EnVision M5 Venus orbiter proposal, EPSC Abstracts Vol. 13, EPSC-DPS2019-1475-1, 2019.
[C142] Helbert, J., Dyar, M. D.,Maturilli, A., Widemann, T. Marcq, E, Rosas-Ortiz, Y.,Walter, I., D’Amore, M., Alemanno, G., Müller, N., Smrekar, S. 2019, Spectroscopy of the Surface of Venus – in the Laboratory and from Orbit, EPSC Abstracts Vol. 13, EPSC-DPS2019-1358-1, 2019.
[C141] Marcq, E., Jessup, K.L., Encrenaz, T., Baggio, L., Amine, I., Duquesnoy, M. , Montmessin, F., Lefèvre, F., Bertaux, J.-L., Vandaele, A. C., Robert, S., Helbert, J., Widemann, T., Wilson, C., Ghail, R. 2019, Preparing EnVision: SO2 measurements below and above Venus’ clouds, EPSC Abstracts Vol. 13, EPSC-DPS2019-253-1, 2019.
[C140] Gonçalves, R., Machado, P., Widemann, T., Peralta, J., Watanabe, S., Yamazaki, A., Satoh, T., Takagi, M., Ogohara, K., Lee, Y .J., Harutyunyan, A., Silva, J. 2019, Venus’ cloud top wind study: coordinated Akatsuki/UVI with cloud tracking and TNG/HARPS-N with Doppler velocimetry observations, EPSC Abstracts Vol. 13, EPSC-DPS2019-145-1, 2019.
[C139] Machado, P., Widemann, T., Peralta, J., Gonçalves, R., Gilli, G., J. Silva, J. and Espadinha, D. 2019, Venus’ atmosphere cloud tracked winds (283 and 385 nm): comparison with Doppler winds and GCM simulations, EPSC Abstracts Vol. 13, EPSC-DPS2019-131-1, 2019.
[C138] Lee, Y.J., Helbert, J., Taguchi, M., Murakami, G., Quémerais, E., Watanabe, S., Maturilli, A., García-Muños, A., Nara, Y., Imamura, T., Yamazaki, A., Yamada, M., Sato, T.M., Satoh, T., Benkhoff, J., Widemann, T., Mangano, V., Imai, M., Peralta, J., Young, E., Machado, P., Encrenaz, T., Nakamura, M., 2020 Coordinated Venus Observations of BepiColombo (ESA and JAXA), Akatsuki (JAXA), and Ground-based Telescopes, EPSC Abstracts Vol. 13, EPSC-DPS2019-68-1, 2019.
[C137] Encrenaz T., Greathouse, T., Marcq, E., Sagawa, H., Widemann, T., Marcq, Bézard, B., Fouchet, T., Lefèvre, F., Lebonnois, S., Atreya, S.K., Lee, Y. J., Giles, R., Watanabe, S., Ground-based mapping of SO2 and HDO on Venus in the thermal infrared, EPSC Abstracts Vol. 13, EPSC-DPS2019-83-1, 2019.
[C136] Wilson, C.F., Widemann, T.: Venus: Key to understanding the evolution of terrestrial planets, A response to ESA’s Call for White Papers for the Voyage 2050 long-term plan in the ESA Science Programme, submitted in August 2019, arXiv e-prints, arXiv:1908.04269.
2018
[C135] Helbert, J., Dyar, D., Widemann, T., Marcq, E., Walter, I., Guignan, G., Wendler, D., Mueller, N., Kappel, D., Arnold, G., D’Amore, M., Maturilli, A., Ferrari, S., Tsang, C., Boerner, A., Jaenchen, J., Smrekar, S. 2018, The Venus Emissivity Mapper (VEM) – obtaining global mineralogy of Venus from orbit, SPIE Proc., Infrared Remote Sensing and Instrumentation XXVI, San Diego, CA (2018).
[C134] Limaye, S., Wilson C., Helbert, J., Widemann, T., Imamura, T., Ghail, R.., A.-C. Vandaele, L. Zasova, A. Ocampo, E. Marcq 2018, International Collaboration for Venus Exploration, 42nd COSPAR Scientific Assembly 2018, PEX.1 International Coordination of Space Exploration Activities, held July 14 – 22, 2018 in Pasadena, California.
[C133] Widemann, T., Ghail, R.C., Wilson, C.F. 2018, EnVision, Understanding why our most Earth-like Neighbour is so Different, 42nd COSPAR Scientific Assembly 2018, Space Studies of the Upper Atmospheres of the Earth and Planets including Reference Atmospheres (Division C), Planetary Atmospheres (C3.1), held July 14 – 22, 2018 in Pasadena, California, id.21904.
[C132] Encrenaz, T., Greathouse, T.K., Marcq, E., Sagawa, H., Widemann, T., Bézard, B., Fouchet, T., Atreya, S.K., and Lee, Y.J. 2018 : HDO and SO2 thermal mapping on Venus: Short-term variations, statistical analysis of the SO2 plumes and comparison with space data, 15th Annual Meeting of the Asia Oceania Geosciences Society (AOGS), held June 3-8, 2018 in Honolulu, Hawaii.
[C131] Widemann, T., Marcq, E., Tsang, C., Mueller, N., Kappel, D., Helbert, J., Dyar, M.D., and Smrekar, S. 2018, 49th Lunar and Planetary Science Conference, held 19-23 March 2018, at The Woodlands, Texas. LPI Contribution No. 2083, id.2386
[C130] Ghail, R.C., Wilson, C.W., Widemann, T. 2018, EnVision M5 Venus Orbiter Proposal : Complementary Science Opportunities, 49th Lunar and Planetary Science Conference, held 19-23 March 2018, at The Woodlands, Texas. LPI Contribution No. 2083, id.1927
2017
[C129] Widemann, T., Marcq, E., Tsang, C., Mueller, N., Kappel, D., Helbert, J., Dyar, M.D., Smrekar, S. 2017, The Venus Emissivity Mapper – Investigating the Atmospheric Structure and Dynamics of Venus’ Polar Region, Communication presented at the American Geophysical Union Fall Meeting, New Orleans, LA, 11-15 Dec. 2017, session : Climatic Evolution of Venus and Venus-like Exoplanets, abstract 23187.
[C128] Smrekar, S.E., Dyar, M.D., Hensley, S., Helbert, J., Sotin, C., Mazarico, E. and the VOX Team, Venus Origins Explorer (VOX), a Proposed New Frontier Mission, 15th Meeting of the Venus Exploration and Analysis Group (VEXAG), held 14-16 November, 2017 in Laurel, Maryland. LPI Contribution No. 2061, p.8031
[C127] Widemann, T., Marcq, E., Tsang, C., Mueller, N., Kappel, D., Helbert, J., Dyar, M.D., Smrekar, S. 2017, The Venus Emissivity Mapper – Investigating the Atmospheric Structure and Dynamics of Venus’ Polar Region, 15th Meeting of the Venus Exploration and Analysis Group (VEXAG), held 14-16 November, 2017 in Laurel, Maryland. LPI Contribution No. 2061, p.8023
[C126] M. D. Dyar, J. Helbert, T. Boucher, D. Wendler, I. Walter, T. Widemann, E. Marcq, A. Maturilli, S. Ferrari,1, M. D’Amore, N. Müller, and S. Smrekar, Mapping Venus Mineralogy and Chemistry In Situ from Orbit with Six-Window VNIR Spectroscopy, 15th Meeting of the Venus Exploration and Analysis Group (VEXAG), held 14-16 November, 2017 in Laurel, Maryland. LPI Contribution No. 2061, p.8004
[C125] Widemann, T., Marcq, E., Tsang, C., Mueller, N., Kappel, D., Helbert, J., Dyar, M.D., Smrekar, S. 2017, The Venus Emissivity Mapper – Investigating the Atmospheric Structure and Dynamics of Venus’ Polar Region, Communication presented at the AAS/Division of Planetary Sciences 49, 15-20 October 2017, Provo, UT, abstract 417.02.
[C124] Helbert, J., Dyar, M.D., Widemann, T., Marcq, E., Maturilli, A., Mueller, N., Kappel, D., Ferrari, S., D’Amore, M., Tsang, C., Arnold, G., Smrekar, S. 2017, The Venus Emissivity Mapper – gaining a global perspective on the surface composition of Venus, Communication presented at the AAS/Division of Planetary Sciences #49, 15-20 October 2017, Provo, UT, abstract 417.01.
[C123] Encrenaz, T., T. K. Greathouse, M. J. Richter, C. DeWitt, J. H. Lacy, T. Widemann, B. Bézard, T. Fouchet, S. K. Atreya, H. Sagawa. Ground-based thermal mapping of Venus : Temperature fields and variations of SO2 & HDO. Communication presented at the EPSC General Assembly, Riga, September 17-22, 2017a.
[C122] Machado, P., Widemann, T., Peralta, J., Gonçalves, R., Gilli, G. and Silva, M. 2017, Meridional and Zonal winds at Venus’ atmosphere from Cloud-tracking, Doppler techniques and comparison with modelling, Communication presented at the EPSC General Assembly, Riga, September 17-22, 2017.
[C121] Gonçalves, R., Machado, P., Peralta, J., Y. J. Lee, T. Widemann, A. Harutyunyan 2017, Akatsuki (space-based cloud- tracking) and TNG/HARPS-N (ground-based Doppler velocimetry) coordinated wind measurements of cloud top Venus’ atmosphere, Communication presented at the EPSC General Assembly, Riga, September 17-22, 2017.
[C120] Helbert, J., Walter, I., Wendler, D., Widemann, T., Marcq, E., Guignan, G., Ferrari, S., Maturilli, A., Mueller, N., Kappel, D., Jaenchen, J., D’Amore, M., Boerner, A., Dyar, M.D., Arnold, G.E., Smrekar, S. 2017, The Venus Emissivity Mapper concept, SPIE Proc. Vol.10403, Infrared Remote Sensing and Instrumentation XXV, San Diego, CA, 104030J (2017); doi: 10.1117/12.2275666
[C119] Wilson, C.F., Ghail, R.C., Widemann, T. 2017, EnVision, a proposed ESA Venus Orbiter Mission, Venus Modeling Workshop, held 9-11 May, 2017 in Cleveland, Ohio. LPI Contribution No. 2022, id.8028
[C118] Encrenaz, T. Greathouse, T.; Richter, M.; DeWitt, C.; Widemann, T.; Bezard, B., Fouchet, T.; Atreya, S.; Sagawa, H. 2017, Ground-based imaging spectroscopy of Venus: variability of HDO and SO2 between 2012 and 2017 and analysis of the thermal structure, 19th EGU General Assembly, EGU2017, proceedings from the conference held 23-28 April, 2017 in Vienna, Austria., p.6202
[C117] Dyar, M.D., Helbert, J., Boucher, T., Wendler, D., Walter, I., Widemann, T., Marcq, E., Maturilli, A., Ferrari, S., D’Amore, M., Mueller, N., Smrekar, S. 2017, Probing Rock Type, Fe Redox State, and Transition Metal Contents with Six-Window VNIR Spectroscopy Under Venus Conditions, 48th Lunar and Planetary Science Conference, held 20-24 March 2017, at The Woodlands, Texas. LPI Contribution No. 1964, id.3014
[C116] Ghail, R., Wilson, C., Widemann, T. 2017, VenSAR, the Revolutionary Radar for the EnVision Mission to Venus, 48th Lunar and Planetary Science Conference, held 20-24 March 2017, at The Woodlands, Texas. LPI Contribution No. 1964, id.2805
[C115] Wendler, D., Helbert, J., Walter, I., Widemann, T., Guignan, G., Marcq, E., Maturilli, A., Ferrari, S., D’Amore, M., Mueller, N., Dyar, M., Smrekar, S. 2017, The Venus Emissivity Mapper (VEM) Prototype, 48th Lunar and Planetary Science Conference, held 20-24 March 2017, at The Woodlands, Texas. LPI Contribution No. 1964, id.2645
[C114] Widemann, T., Head, J. W., Helbert, J., Smrekar, S. 2017, SO2 Vapor Equilibrium with Oxidized Surface Rocks, 48th Lunar and Planetary Science Conference, held 20-24 March 2017, at The Woodlands, Texas. LPI Contribution No. 1964, id.1655
[C113] Ghail, R., Wilson, C., Widemann, T., Bruzzone, L., Dumoulin, C., Helbert, J., Herrick, R., Marcq, E., Mason, P., Rosenblatt, P., Vandaele, A.C., Burtz, L.-J. 2017, EnVision: understanding why our most Earth-like neighbour is so different, eprint arXiv:1703.09010.
2016
[C112] Helbert, J., Marcq, E., T. Widemann, Mueller, N., Kappel, D., Tsang, C., Maturilli, A., Ferrari, S., D’Amore, M., Dyar, M.D., Smrekar, S. 2016, The Venus Emissivity Mapper, DPS #48-EPSC #11 joint meeting, 16-21 October 2016, Pasadena, CA.
[C111] Ghail, R., Wilson, C.F., Widemann, T. 2016, EnVision M5 Venus Orbiter Proposal: Opportunities and Challenges, DPS #48-EPSC #11 joint meeting, 16-21 October 2016, Pasadena, CA, abstract 216.08
[C110] Tanga, P., T. Widemann, C.
Pere, B. A. Babcock, J. Berthier, J. M.
Pasachoff, M. Roos-Serote 2016, The thermal field of the terminator mesosphere of Venus using solar transit data, DPS #48-EPSC #11 joint meeting, 16-21 October 2016, Pasadena, CA, abstract 115.09
[C109] Widemann, T., Machado, P., Peralta, J., Marcq, E., Helbert, J., Smrekar, S. 2016, Meridional transport in the Venusian atmosphere, DPS #48-EPSC #11 joint meeting, 16-21 October 2016, Pasadena, CA, abstract 115.07
[C108] Piccialli A., R. Moreno, T. Encrenaz, T. Fouchet, E. Lellouch, A.
Moullet, T. Widemann, Monitoring the thermal structure and minor species of Venus mesosphere with ALMA submm observations, DPS #48-EPSC #11 joint meeting, 16-21 October 2016, Pasadena, CA, abstract 216.20
[C107] P. Machado, J. Peralta, D. Luz, R. Gonçalves, T. Widemann, J. Oliveira 2016, Venus’ night side atmospheric dynamics using near infrared observations from VEx/VIRTIS and TNG/NICS, DPS #48-EPSC #11 joint meeting, 16-21 October 2016, Pasadena, CA, abstract 115.06
[C106] Marcq, E., N. Mueller, C. Tsang, D. Kappel, T. Widemann, J. Helbert, S. Smrekar, Atmospheric Science with VEM on board Veritas
, DPS #48-EPSC #11 joint meeting, 16-21 October 2016, Pasadena, CA.
[C105] Helbert, J., Wendler, D., Walter, I., Widemann, T., Marcq, E., Ferrari, S., Maturilli, A., D’Amore, M., Kappel, D., Arnold, G.E., Mueller, N., Dyar, M.D., Smrekar, S., Boerner, A., Jaenchen, J., Guignan, G. 2016, The Venus Emissivity Mapper (VEM) concept, SPIE Proc. Vol.9973, Infrared Remote Sensing and Instrumentation XXIV, San Diego, CA, 99730R (2016); doi: 10.1117/12.2237568
[C104] T. Encrenaz, T. K. Greathouse, M.J. Richter, C. DeWitt, T. Widemann, B. Bézard, T. Fouchet, S. K. Atreya, H. Sagawa, 2016, Variability of SO2 and HDO and thermal structure in the lower mesosphere of Venus from infrared spectroscopy, International Venus Conference 2016, Oxford, UK, 4-8 April 2016.
[C103] R. C. Ghail, C. F. Wilson, T. Widemann, EnVision M5 Venus Orbiter Proposal: Opportunities and Challenges, International Venus Conference 2016, Oxford, UK, 4-8 April 2016.
[C102] J. Helbert, D. Wendler, I. Walter, T. Widemann, E. Marcq, A. Maturilli, S. Ferrari, M. D’Amore, N. Müller, M. D. Dyar, and S. Smrekar, Institute for Planetary Research, DLR, Rutherfordstrasse 2, 12489 Berlin, Germany (joern.helbert@dlr.de), the Venus Emissivity Mapper (VEM) Concept, International Venus Conference 2016, Oxford, UK, 4-8 April 2016.
[C101] S.S. Limaye, M. Pätzold, S. Bougher, S. Bruinsma, S. Chamberlain, R.T. Clancy, J.-C. Gérard, G. Gilli, D. Grassi, R. Haus, M. Herrmann, T. Imamura, E. Kohler, P. Krause, S. Lebonnois, A. Mahieux, A. Migliorini, F. Montmessin, C. Pere, M. Persson, A. Piccialli, M. Rengel, A. Rodin, Manuela Sornig, H. Svedhem, S. Tellmann, P. Tanga, A.C. Vandaele, T. Widemann, C. Wilson, I. Müller-Wodarg, L. Zasova 2016, The structure of the Venus atmosphere: intercomparison of Venus Express and ground based observations of vertical temperature and density profiles, International Venus Conference 2016, Oxford, UK, 4-8 April 2016.
[C100] P. Machado, T. Widemann, J. Peralta, R. Gonçalves, J.-F. Donati and D. Luz, Institute of Astrophysics and Space Sciences, Observatório Astronómico de Lisboa, Ed. Leste, Tapada da Ajuda, 1349-018 Lisboa, Portugal (machado@oal.ul.pt) 2016, Ground and space based cloud-top wind velocities using CFHT/ESPaDOnS (Doppler velocimetry) and VEx/VIRTIS (cloud tracking) coordinated measurements, International Venus Conference 2016, Oxford, UK, 4-8 April 2016.
[C99] A. Piccialli, R. Moreno, T. Encrenaz, T. Fouchet, E. Lellouch, A. Moullet, T. Widemann 2016, Mapping the thermal structure and minor species of Venus mesosphere with ALMA, International Venus Conference 2016, Oxford, UK, 4-8 April 2016.
[C98] P. Tanga, Th. Widemann, Ch. Pere, M. Roos-Serote 2016, Venus mesosphere at the terminator, studied during the solar transits, International Venus Conference 2016, Oxford, UK, 4-8 April 2016.
[C97] Th. Widemann, C. Wilson, T. Imamura, E. Lellouch, H. Svedhem, M. Nakamura, the EuroVenus consortium 2016, International ground-based support to Venus Express and Akatsuki missions, 2007-2017, International Venus Conference 2016, Oxford, UK, 4-8 April 2016.
[C96] Helbert, J.; Wendler, D.; Walter, I.; Widemann, T.; Marcq, E.; Maturilli, A.; Ferrari, S.; D’Amore, M.; Müller, N.; Dyar, M. D.; Smrekar, S. 2016, The Venus Emissivity Mapper (VEM) Concept, 47th Lunar and Planetary Science Conference, March 21-25 2016, The Woodlands, TX.
[C95] Ghail, R. C.; Wilson, C. F.; Widemann, T. 2016, EnVision M5 Venus Orbiter Proposal: Opportunities and Challenges, 47th Lunar and Planetary Science Conference, March 21-25 2016, The Woodlands, TX.
2015
[C94] Piccialli, A., Moreno, R., Encrenaz, T., Fouchet, T., Lellouch, E., Moullet, A., Widemann, T. 2015,Thermal Structure and Minor Species Distribution of Venus Mesosphere by ALMA sub-millimeter Observations, American Astronomical Society, DPS meeting #47, National Harbor, MD, Nov. 8-13 2015, #201.03.
[C93] Dias-Oliveira, Alex; Sicardy, Bruno; Lellouch, Emmanuel; Vieira-Martins, Roberto; Assafin, Marcelo; Ignácio Bueno Camargo, Júlio; Braga-Ribas, Felipe; Gomes-
Júnior, Altair; Bendetti-Rossi, Gustavo; Colas, François; Decock, Alice; Doressoundiram, Alain; Dumas, Christophe; Emílio, Marcelo; Fabrega Polleri, Joaquin; Gil-Hutton, Ricardo; Gillon, Michael; Girard, Julien; Hau, George; Ivanov, Valentin; Jehin, Emmanuel; Lecacheux, Jean; Leiva, Rodrigo; Lopez-Sisterna, Cecília; Mancini, Luigi; Manfroid, Jean; Maury, Alain; Meza, Erick; Morales, Nicolas; Nagy, Leslie; Opitom, Cyrielle; Ortiz, José Luiz; Pollock, Joe; Roques, Françoise; Snodgrass, Colin; François Soulier, Jean; Thirouin, Audrey; Vanzi, Leonardo; Widemann, T.; Reichart, Daniel; LaCluyze, Aaron; Haislip, Joshua B.; Ivarsen, Kevin; Dominik, Martin; Jørgensen, Uffe; Skottfelt, Jesper 2015, American Astronomical Society, DPS meeting #47, National Harbor, MD, Nov. 8-13 2015, id.200.09
[C92] Limaye, S. S.; Bougher, S.; Chamberlain, S.; Clancy, R. T.; Gilli, G.; Grassi, D.; Haus, R.; Herrmann, M.; Imamura, T.; Kohler, E.; Krause, P.; Lebonnois, S.; Mahieux, A.; Sandor, A.; Sornig, M.; Svedhem, H.; Tellmann, S.; Vandaele, A. C.; Widemann, T.; Wilson, C.; Mueller-Wodarg, I.; Zasova, L. 2015, Improved Knowlegde of Venus Atmospheric Structure, European Planetary Science Congress 2015, held 27 September – 2 October, 2015 in Nantes, France, id.EPSC2015-758.
[C91] Père, C.; Tanga, P.; Widemann, T.; Mahieux, A.; Wilquet, V.; Vandaele, A. C. 2015, The vertical density profile of the mesosphere of Venus by independent measurements from SPICAV/SOIR and aureole photometry, European Planetary Science Congress 2015, held 27 September – 2 October, 2015 in Nantes, France, id.EPSC2015-692.
[C90] Machado, P.; Widemann, T.; Peralta, J.; Luz, D. 2015, Ground and space based cloud-top wind velocities using CFHT/ESPaDOnS (Doppler velocimetry) and VEx/VIRTIS (cloud tracking) coordinated measurements, European Planetary Science Congress 2015, held 27 September – 2 October, 2015 in Nantes, France, id.EPSC2015-666.
[C89] Piccialli, A.; Moreno, R.; Encrenaz, T.; Fouchet, T.; Lellouch, E.; Moullet, A.; Widemann, T. 2015, Thermal structure and minor species of Venus mesosphere by ALMA submm ground-based observations, European Planetary Science Congress 2015, held 27 September – 2 October, 2015 in Nantes, France, id.EPSC2015-586.
[C88] Encrenaz, T.; Greathouse, T.; Richter, M.; DeWitt, C.; Lacy, J.; Widemann, T.; Bézard, B.; Fouchet, T.; Atreya, S.; Sagawa, H. 2015, Variability of SO2 and HDO at the cloudtop of Venus from high-resolution infrared spectroscopy, European Planetary Science Congress 2015, held 27 September – 2 October, 2015 in Nantes, France, id.EPSC2015-113.
[C87] Ross, F., Lee, G., Polidan, R., Sokol, D., Miller, J., Samuele, R., Barnes, N., Bolisay, L., Michi, Y., Limaye, S., Widemann, T., VAMP Science Instrument Accomodations and Performance Capabilities, 11th Low Cost Planetary Missions Conference, June 9-11 2015, Berlin, Germany.
[C86] Encrenaz, T., Greathouse, T.K., Richter, M.J., Lacy, J.H., Widemann, T., Bézard, B., deWitt, C., Atreya, S.K., Imaging spectroscopy of Venus in the thermal infrared : daily variations of the thermal structure, EGU General Assembly 2015, April, 2015 in Vienna, Austria.
2014
[C85] Widemann, T., Jaeggli, S., Reardon, K., Tanga, P., Père, C., Pasachoff, J.M., Vandaele, A.-C., Wilquet, V., Mahieux, A., Wilson, C., Venus’ thermospheric temperature field using a refraction model at terminator : comparison with 2012 transit observations using SDO/HMI, VEx/SPICAV/SOIR and NSO/DST/FIRS, American Astronomical Society, DPS meeting #44, held in Tucson, AZ Oct. 14-19 2014, #508.08.
[C84] Cutts, J. A., Ocampo, A., Limaye, S., Glaze, L., Svedhem, H., Nakamura, M., Zasova, L., Wilson, C., and Widemann, T. 2014, International Collaboration for Venus Exploration, International Coordination of Planning for Space Exploration, 40th COSPAR Scientific Assembly, Moscow, 3-9 August 2014.
[C83] Cutts J. A., Widemann T. Limaye S. Baines K. H. Wilson C. F. Voss P. Hall J. L.
Nott J. Kerzhanovich V. 2014, Exploration Targets in the Venus Cloud Regions #6015 – Poster session : Within the Atmosphere. Workshop on Venus Exploration Targets, V. Sharpton, L. Esposito, C. Sotin conv., Lunar and Planetary Institute, 3600 Bay Area Boulevard, Houston TX 77058.
[C82] Limaye S. S. Glaze L. S. Cutts J. A. Wilson C. F. Parish H. F. Schubert G. Baines K. H.
Covey C. C. Widemann T. 2014, Exploration Targets in the Lower Atmosphere of Venus #6021 – Poster session : Within the Atmosphere. Workshop on Venus Exploration Targets, V. Sharpton, L. Esposito, C. Sotin conv., Lunar and Planetary Institute, 3600 Bay Area Boulevard, Houston TX 77058.
[C81] Widemann T. Wilquet V. McGouldrick K. Määttänen A. Cutts J. Wilson C. Jessup K. L. Limaye S. Polidan R. Griffin K. the EuroVenus consortium , 2014, Venus’ Robotic Exploration at Upper Cloud Level: A US-European Perspective #6029 – Poster session : Within the Atmosphere. Workshop on Venus Exploration Targets, V. Sharpton, L. Esposito, C. Sotin conv., Lunar and Planetary Institute, 3600 Bay Area Boulevard, Houston TX 77058.
[C80] Angelo Pio Rossi, Baptiste Cecconi, Markus Fraenz, Axel Hagermann, David Heather, Pascal Rosenblatt, Hakan Svedhem, and Thomas Widemann 2014, The ESA Planetary Science Archive User Group (PSA-UG), Geophysical Research Abstracts Vol. 16, EGU2014-5102, EGU General Assembly 2014, © Author(s) 2014.
[C79] Emmanuel Marcq, Thérèse Encrenaz, Emmanuel Lellouch, Jean-Loup Bertaux, Thomas Widemann, and Mirel Birlan 2014, Measurements of carbon monoxide above Venus’ cloud top from IRTF/CSHELL observations, Geophysical Research Abstracts
Vol. 16, EGU2014-6599,
EGU General Assembly 2014
© Author(s) 2014.
[C78] Widemann, T., Määttänen, A., Wilquet, V., McGouldrick, K., Jessup, Kandis Lea, Wilson, C., Limaye, S., and the EuroVenus consortium 2014, Dynamics and chemistry of Venus’ large and complex cloud system : a science case for an in-situ long-term chemical laboratory, Geophysical Research Abstracts
Vol. 16, EGU2014-9273-1, 2014
EGU General Assembly 2014
© Author(s) 2014.
[C77] Limaye, S., Ashish, K., Alam, M., Landis, G., Widemann, T., Kremic, T. 2014, Sampling the Cloudtop Region on Venus, Geophysical Research Abstracts Vol. 16, EGU2014-8720-6, 2014, EGU General Assembly 2014, © Author(s) 2014.
[C76] Widemann, T., Tanga P., Père, C., Jaeggli, S., Reardon, K., and Pasachoff, J. M. 2014, Venus’ thermospheric temperature field using a refraction model at terminator : comparison with 2012 transit observations using SDO/HMI and NSO/DST/FIRS, Geophysical Research Abstracts
Vol. 16, EGU2014-12916, 2014
EGU General Assembly 2014
© Author(s) 2014.
[C75] T. Widemann, K. Griffin, A. Määttänen, V. Wilquet, K. McGouldrick, K.L Jessup, C. Wilson, R. Polidan, D. Sokol, G. Lee, L. Bolisay, N. Barnes, S. Limaye, the EuroVenus consortium, Venus’ robotic exploration at cloud level : a US-European perspective, International Academy of Astronautics Space Exploration Conference, pre-Summit Conference on Planetary Robotic and Human Spaceflight Exploration, January 09, 2014, Washington DC, USA
[C74] Limaye, S., L. Zasova, C. Wilson, R.C. Ghail, A.C. Vandaele, W. J. Markiewicz, T. Widemann, T. Imamura, F. Montmessin, E. Marcq, James A. Cutts 2014, Planetary Robotic Exploration and Opportunities for International Collaboration on Climate Change: A Comparative Climatology Case Study, International Academy of Astronautics Space Exploration Conference, pre-Summit Conference on Planetary Robotic and Human Spaceflight Exploration, January 09, 2014, Washington DC, USA
2013
[C73] Widemann, T, Pasachoff, J.M., Vandaele, A.C., Wilquet, V., Mahieux, A., Wilson, C., Venus’ thermospheric temperature field using a refraction model at terminator : American Astronomical Society, DPS meeting #43, held in Denver, CO Oct. 14-19 2014, #508.08.
[C72] Jaeggli, S., Reardon, K.P., Pasachoff, J.M., Schneider, G., Widemann, T., Tanga, P. 2013, 1565 nm Observations of the Transit of Venus, Proxy for a Transiting Exoplanet, American Astronomical Society / 44th Meeting of the Solar Physics Division (SPD), Bozeman, Montana 8-11 July 2013.
[C71] Widemann, T., Tanga, P., Vandaele, A.C., Wilquet, V., Mahieux, A. 2013, Mesospheric temperature at terminator using SDO/HMI aureole photometry and comparison with Venus Express, EGU General Assembly 2013, held 7-12 April, 2013 in Vienna, Austria, id. EGU2013-5690.
[C70] Marcq, E., Encrenaz, T., Widemann, T. Lellouch, E., Fouchet, T. 2013, Ground-based C-SHELL/IRTF observations of Venus near 4.53μm, EGU General Assembly 2013, held 7-12 April, 2013 in Vienna, Austria, id. EGU2013-5295.
[C69] Encrenaz, T., Greathouse, T., Richter, M., Lacy, J., Bézard, B. Fouchet, T., DeWitt, C. and Widemann, T. 2013, Mapping of SO2 on Venus within the H2SO4 cloud using ground-based infrared imaging spectroscopy, EGU General Assembly 2013, held 7-12 April, 2013 in Vienna, Austria, id. EGU2013-3967.
[C68] Machado, P., T. Widemann, D. Luz, J. Peralta 2013, Venus winds with ground-based Doppler velocimetry and comparison with coordinated cloud tracking method winds, 44th Lunar and Planetary Science Conference, held March 18-22, 2013 in The Woodlands, Texas. LPI Contribution No. 1719, p.1975.
[C67] Edelman, E., Pasachoff, J.M., Schneider, G., Babcock, B.A., Lu, M., Reardon, K., Widemann, T., Tanga, P., Dantowitz, R. 2013, The 2012 Transit of Venus: A Closer Look at the Cytherean Aureole, American Astronomical Society, AAS Meeting #221, #353.04.
2012
[C66] Pasachoff, J.M., Schneider, G., Babcock, B.A., Lu, M., Edelman, E., Reardon, K., Widemann, T., Tanga, P., Dantowitz, R., Silverstone, M.D., Ehrenreich, D., Vidal-Madjar, A., Nicholson, P.D., Willson, R.C., Kopp, G.A., Yurchyshyn, V.B., Sterling, A.C., Scherrer, P.H., Schou, J., Golub, L., McCauley, P., Reeves, K. 2013, Three 2012 Transits of Venus: From Earth, Jupiter, and Saturn, American Astronomical Society, AAS Meeting #221, #315.06.
[C65] Widemann, Thomas; Tanga, P.; Reardon, K. P.; Limaye, S.; Wilson, C.; Vandaele, A.; Wilquet, V.; Mahieux, A.; Robert, S.; Pasachoff, J. M.; Schneider, G., Asymmetry in the Polar Mesosphere Revealed by the 2012 Venus Transit Aureole, American Astronomical Society, DPS meeting #44, Reno, NV Oct. 14-19 2012, #508.08.
[C64] Tanga, Paolo; Widemann, T.; Ambastha, A.; Babcock, B. A.; Berthier, J.; Bouley, S.; Braga-Ribas, F.; Brasch, K.; Burke, W.; Colas, F.; and 15 coauthors, The Venus Twilight Experiment: Probing The Mesosphere in 2004 And 2012, American Astronomical Society, DPS meeting #44, Reno, NV Oct. 14-19 2012, #508.07.
[C63] Pasachoff, Jay M.; Schneider, G.; Babcock, B. A.; Lu, M.; Reardon, K. P.; Widemann, T.; Tanga, P.; Dantowitz, R.; Willson, R.; Kopp, G.; and 6 coauthors, The 2012 Transit of Venus for Cytherean Atmospheric Studies and as an Exoplanet Analog, American Astronomical Society, DPS meeting #44, Reno, NV Oct. 14-19 2012, #508.06.
[C62] Braga Ribas, Felipe; Sicardy, B.; Ortiz, J. L.; Duffard, R.; Camargo, J. I. B.; Lecacheux, J.; Colas, F.; Vachier, F.; Tanga, P.; Sposetti, S.; and 25 coauthors, Stellar Occultations by Large TNOs on 2012: The February 3rd by (208996) 2003 AZ84, and the February 17th by (50000) Quaoar, American Astronomical Society, DPS meeting #44, Reno, NV Oct. 14-19 2012, #402.01.
[C61] Sicardy, Bruno; Braga-Ribas, F.; Widemann, T.; Jehin, E.; Gillon, M.; Manfroid, J.; Ortiz, J. L.; Morales, N.; Maury, A.; Assafin, M.; and 25 coauthors, Charon’s Size And Orbit From Double Stellar Occultations, American Astronomical Society, DPS meeting #44, Reno, NV Oct. 14-19 2012, #304.01.
[C60] P. Machado, T. Widemann, D. Luz, J. Peralta, and S. Chamberlain, 2012, Observation of Dynamical Tracers in the Venus Atmosphere, Comparative Climatology of Terrestrial Planets, held June 25–28, 2012, in Boulder, Colorado. LPI Contribution No. 1675, id.8021.
[C59] P. Machado, T. Widemann, D. Luz, J. Peralta, and D. L. Berry 2012, New measurements of Venus winds with ground-based Doppler velocimetry at CFH, EGU/7th European Geophysical Union General Assembly, Vienna, 23-28 April 2012, Geophysical Research Abstracts Vol. 14, EGU2012-10438.
[C58] T. Encrenaz, T. K. Greathouse, H. Roe, J. H. Lacy, M. J. Richter, B. Bézard, T. Fouchet,and T. Widemann 2012, Mapping of SO2 and HDO on Venus using thermal infrared imaging spectroscopy, EGU/7th European Geophysical Union General Assembly, Vienna, 23-28 April 2012, Geophysical Research Abstracts Vol. 14, EGU2012-5867.
2011
[C57] P. Tanga, Th. Widemann, and B. Sicardy 2011, The aureole of Venus: light refraction in the mesosphere during the solar transit of June 6, 2004, American Astronomical Society, DPS meeting #43 and 6th European Planetary Science Congress, Nantes, France, 2-7 October, 2011, EPSC-DPS Abstracts, Vol. 6, EPCS-DPS2011-1032.
[C56] P. Machado, D. Luz, and T. Widemann 2011, Characterization of Venus’ cloud top dynamics using ground-based Doppler velocimetry, American Astronomical Society, DPS meeting #43 and 6th European Planetary Science Congress, Nantes, France, 2-7 October, 2011, EPSC-DPS Abstracts, Vol. 6, EPCS-DPS2011-517.
[C55] M. W. Buie, D. J. Tholen, L. H. Wasserman, B. Sicardy, L. A. Young, E. F. Young, W. Ryan, E. Ryan, K. Walsh, T. Widemann, F. Vachier, W. Beisker, T. Hall, J. Dire, C. K. Erickson, C. Nance, and M. Person 2011, Hydra stellar occultation of 2011 June 27, American Astronomical Society, DPS meeting #43 and 6th European Planetary Science Congress, Nantes, France, 2-7 October, 2011, EPSC-DPS Abstracts, Vol. 6, EPCS-DPS2011-1715.
[C54] B. Sicardy, J. L. Ortiz, M. Assafin, E. Jehin, A. Maury, E. Lellouch, R. Gil-Hutton, F. Braga-Ribas, F. Colas, J. Lecacheux, F. Roques, P. Santo Sanz, T. Widemann, N. Morales, A. Thirouin, J.I.B. Camargo, R. Vieira-Martins, M. Gillon, J. Manfroid, R. Behrend and the Eris occultation Team, 2011, Size, density, albedo and atmosphere limit of dwarf planet Eris from a stellar occultation, American Astronomical Society, DPS meeting #43 and 6th European Planetary Science Congress, Nantes, France, 2-7 October, 2011, EPSC-DPS Abstracts, Vol. 6, EPCS-DPS2011-137.
[C53] Machado, P., T. Widemann, D. Luz 2011, Characterization of Venus’ atmospheric dynamics with ground-based Doppler velocimetry, JpGU International Symposium 2011, Chiba-city, Japan, 22-27 May 2011.
[C52] Wilson C.F., H. Svedhem, D.V. Titov, R. Hoofs, T. Widemann 2011, Venus Express science operations and co-ordinated observation planning, JpGU International Symposium 2011, Chiba-city, Japan, 22-27 May 2011.
[C51] Young, E., Bullock, M., Tsang, C., Hall, D., Widemann, T., Wilson, C. 2011, A Balloon-Borne Mission to Observe Venus During the January 2014 Inferior Conjunction, The 20th ESA Symposium on European Rocket and Balloon Programmes and Related Research, Hyères, France, 22-26 May 2011.
[C50] Encrenaz, T., T. K. Greathouse, M. Richter, B. Bézard, T. Fouchet, E. Marcq, T. Widemann, S. K. Atreya 2011, The synthetic spectrum of Venus in the 7-micron region, EGU/ 6th European Geophysical Union General Assembly, Vienna, 3-8 April 2011, Geophysical Research Abstracts Vol. 13, EGU2012.
Invited international conferences with published acts/abstracts / Conférences internationales invitées avec publications des actes
[I9] Widemann, T., Tanga, P., Vandaele, A.C. 2013, Mesospheric temperature at terminator using SDO/HMI aureole photometry and comparison with Venus Express, C1.1 Atmospheres and ices on terrestrial planets, Davos Atmosphere and Cryosphere Assembly DACA-13, Davos, Switzerland, July 8-12, 2013
[I8] Widemann, T., Understanding Venus to understand the Earth, U43A. Cross-Fertilization Between Environmental Science and Planetary Exploration, AGU Fall Meeting Final ID: U43A-04, San Francisco, 3-7 December 2012.
[I7] Widemann, T., Y. Takahashi, S. Ohtsuki, M. Sornig, B. Sandor, E. Young, C. Tsang, T. Slanger, S. Limaye 2011, Ground-based observations of the mesosphere and lower thermosphere : coordinated campaigns with Venus Express, JpGU International Symposium 2011, Chiba-city, Japan, 22-27 May 2011.
[I6] Widemann, T., Ground-based observational constraints on the mesosphere and lower thermosphere : coordinated campaigns with Venus Express EGU/ 6th European Geophysical Union General Assembly, Vienna, 3-8 April 2011, Geophysical Research Abstracts Vol. 13, EGU2012-A.
