{"id":328,"date":"2021-01-28T11:45:19","date_gmt":"2021-01-28T10:45:19","guid":{"rendered":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/?post_type=eap_event&#038;p=328"},"modified":"2022-01-27T15:09:46","modified_gmt":"2022-01-27T14:09:46","slug":"good-vibrations-seminar-4-mariel-lares-iaa-csic-granada","status":"publish","type":"eap_event","link":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/events\/good-vibrations-seminar-4-mariel-lares-iaa-csic-granada\/","title":{"rendered":"Good Vibrations Seminar #4: Mariel Lares (IAA-CSIC, Granada, Spain)"},"content":{"rendered":"\n<p>Check out the video of the talk: (slides below)<\/p>\n\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" width=\"870\" height=\"489\" src=\"https:\/\/www.youtube.com\/embed\/ftkHNQ1lSO8?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>Check out Mariel&#8217;s slides: <br><a href=\"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/files\/2021\/03\/MLM_good_vibes.pdf\">https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/files\/2021\/03\/MLM_good_vibes.pdf<\/a><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignleft\"><img loading=\"lazy\" decoding=\"async\" width=\"166\" height=\"250\" src=\"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/files\/2021\/02\/Mariel_cv-1.png\" alt=\"\" class=\"wp-image-351\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><em>Non-linear terms in Delta Scuti stars power spectra<\/em><\/strong><\/p>\n\n\n\n<p><a href=\"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/people\/the-speakers\/\">Mariel Lares Martiz (Institute of Astrophysics of Andalusia IAA-CSIC, Granada)<\/a><\/p>\n\n\n\n<p>Non-linear theory of pulsations could explain special characteristics observed in many variable star light curves, however, non-linear models are far from being complete. Ultra-precise photometric data captures the footprints of non-linear processes happening within a pulsating star, which are translated in their power spectra as combination frequencies (additions and subtraction of the eigenfrequencies). In this talk, I will present a study of combination frequencies in \u03b4 Scuti star power spectra, aiming to empirically characterize their non-linear behavior. Based on the study of frequency, amplitude and phase relations given by the Volterra series formulation (a general non-linear model), a self-consistent method to identify combination frequencies with high precision, a possible method to unambiguously identify the non-linear process behind a combination frequency, as well as the possible first use of combination frequencies for mode identification in \u03b4 Sct stars are, among others, the most relevant results.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Check out the video of the talk: (slides below) Check out Mariel&#8217;s slides: https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/files\/2021\/03\/MLM_good_vibes.pdf Non-linear terms in Delta Scuti stars<\/p>\n<p class=\"readmore\"><a href=\"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/events\/good-vibrations-seminar-4-mariel-lares-iaa-csic-granada\/\" title=\"Read Good Vibrations Seminar #4: Mariel Lares (IAA-CSIC, Granada, Spain)\">Read more &raquo;<\/a><\/p>\n","protected":false},"author":73,"featured_media":351,"comment_status":"open","ping_status":"closed","template":"","categories":[],"class_list":["post-328","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\/328","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=328"}],"version-history":[{"count":7,"href":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/wp-json\/wp\/v2\/eap_event\/328\/revisions"}],"predecessor-version":[{"id":625,"href":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/wp-json\/wp\/v2\/eap_event\/328\/revisions\/625"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/wp-json\/wp\/v2\/media\/351"}],"wp:attachment":[{"href":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/wp-json\/wp\/v2\/media?parent=328"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/wp-json\/wp\/v2\/categories?post=328"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}