{"id":330,"date":"2021-01-28T11:46:57","date_gmt":"2021-01-28T10:46:57","guid":{"rendered":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/?post_type=eap_event&#038;p=330"},"modified":"2022-01-27T15:09:33","modified_gmt":"2022-01-27T14:09:33","slug":"good-vibrations-seminar-5-martin-farnir-star-institute-liege-university","status":"publish","type":"eap_event","link":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/events\/good-vibrations-seminar-5-martin-farnir-star-institute-liege-university\/","title":{"rendered":"Good Vibrations Seminar #5: Martin Farnir (STAR institute, Li\u00e8ge University, Belgium)"},"content":{"rendered":"\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" width=\"870\" height=\"653\" src=\"https:\/\/www.youtube.com\/embed\/m8zSQ8pE9Ik?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"has-large-font-size\"><strong><em>Low mass stars seismology with WhoSGlAd and EGGMiMoSA<\/em><\/strong><\/p>\n\n\n\n<p><a href=\"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/people\/the-speakers\/\">Martin Farnir (STAR Institute, Li\u00e8ge University)<\/a><\/p>\n\n\n\n<p style=\"text-align:left\">Since most of the information we receive from outer space is carried by \nstellar light, it comes as a necessity to properly characterise them. \nWith the advent of space missions, it becomes possible to do so, thanks \nto the gathering of data of unprecedented quality. The past CoRoT and \nKepler missions provided the stellar scientists with a wealth of data \nsuch that it allowed for the asteroseismology, the study of stellar \npulsations and their link with the stellar structure, to thrive. This \nenabled to provide a detailed characterisation of distant solar-like \nstars and to pinpoint the shortcomings of current models.\nHowever, to provide precise inferences from observed oscillation \nspectra, it is necessary to have methods which are able to take the most \nadvantage of the exquisite precision of the data. Both of the methods I \ndevelop are tailor-made for such needs.\nThe first method, WhoSGlAd, accounts for the oscillations of \nmain-sequence solar-like stars and the acoustic glitches they may \nexhibit. Acoustic glitches are an oscillating feature in the spectrum \ncaused by a sharp feature in the stellar structure. The adjustment is \ndone in such a way that the fitting parameters are completely \nindependent and the computations are extremely fast. The parameters are \nthen combined to build seismic indicators relevant of the stellar \nstructure as little correlated as possible. Those are then used as \nconstraints to stellar models.\nThe second method, EGGMiMoSA, aims at providing a precise adjustment of \nthe complex behaviour displayed by the mixed-modes oscillation spectra \nof sugbiant and red giant stars. Mixed-modes constitute a unique \nopportunity to probe the stellar interior from the surface to the core \nof the star. Again, the objective of the method is to define seismic \nindicators relevant of the stellar structure in order to constrain \nstellar models.\nDuring the present seminar, I will introduce both techniques and several \nresults obtained via their use.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Low mass stars seismology with WhoSGlAd and EGGMiMoSA Martin Farnir (STAR Institute, Li\u00e8ge University) Since most of the information we<\/p>\n<p class=\"readmore\"><a href=\"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/events\/good-vibrations-seminar-5-martin-farnir-star-institute-liege-university\/\" title=\"Read Good Vibrations Seminar #5: Martin Farnir (STAR institute, Li\u00e8ge University, Belgium)\">Read more &raquo;<\/a><\/p>\n","protected":false},"author":73,"featured_media":382,"comment_status":"open","ping_status":"closed","template":"","categories":[],"class_list":["post-330","eap_event","type-eap_event","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/wp-json\/wp\/v2\/eap_event\/330","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/wp-json\/wp\/v2\/eap_event"}],"about":[{"href":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/wp-json\/wp\/v2\/types\/eap_event"}],"author":[{"embeddable":true,"href":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/wp-json\/wp\/v2\/users\/73"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/wp-json\/wp\/v2\/comments?post=330"}],"version-history":[{"count":6,"href":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/wp-json\/wp\/v2\/eap_event\/330\/revisions"}],"predecessor-version":[{"id":624,"href":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/wp-json\/wp\/v2\/eap_event\/330\/revisions\/624"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/wp-json\/wp\/v2\/media\/382"}],"wp:attachment":[{"href":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/wp-json\/wp\/v2\/media?parent=330"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/wp-json\/wp\/v2\/categories?post=330"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}