{"id":737,"date":"2022-09-30T17:28:30","date_gmt":"2022-09-30T15:28:30","guid":{"rendered":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/?post_type=eap_event&#038;p=737"},"modified":"2023-03-17T14:15:35","modified_gmt":"2023-03-17T13:15:35","slug":"good-vibrations-seminar-s3e4-yaguang-li-university-of-sydney","status":"publish","type":"eap_event","link":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/events\/good-vibrations-seminar-s3e4-yaguang-li-university-of-sydney\/","title":{"rendered":"\u201cGood Vibrations Seminar S3E4\u201d: Yaguang Li (University of Sydney, Australia)"},"content":{"rendered":"\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\/A7frRUah9uw?list=PLCswBYjvdjkpj-5lwWMMYwPc8k-rhyf3Z\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Developing the tools for probing solar-like oscillators.<\/h2>\n\n\n\n<p>I focus on developing the fundamental tools to better characterise stellar properties, particularly for solar-type stars and red giants. My talk is a collection of three parts. Firstly, I introduce a new tool to be implemented in stellar modelling. I prescribe the surface correction, a known type of model uncertainty and conventionally treated with free parameters, to correlate with stellar parameters. The new prescription can effectively reduce the scatter in model-derived ages.&nbsp;Secondly, I discuss how to test the widely used asteroseismic scaling relations for deriving stellar masses and radii. I measure the intrinsic scatter to be a few per cent, using sharp features naturally formed by stellar populations. I also revise and test the systematic offsets of those relations, providing a solid justification for their applications.&nbsp;Thirdly, based on these foundational studies, I illustrate how discoveries can naturally emerge from data with increased precision. I find two new types of post-mass-transfer red giants based on their stellar properties.<\/p>\n\n\n\n<p><br><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Developing the tools for probing solar-like oscillators. I focus on developing the fundamental tools to better characterise stellar properties, particularly<\/p>\n<p class=\"readmore\"><a href=\"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/events\/good-vibrations-seminar-s3e4-yaguang-li-university-of-sydney\/\" title=\"Read \u201cGood Vibrations Seminar S3E4\u201d: Yaguang Li (University of Sydney, Australia)\">Read more &raquo;<\/a><\/p>\n","protected":false},"author":73,"featured_media":775,"comment_status":"open","ping_status":"closed","template":"","categories":[],"class_list":["post-737","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\/737","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=737"}],"version-history":[{"count":5,"href":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/wp-json\/wp\/v2\/eap_event\/737\/revisions"}],"predecessor-version":[{"id":833,"href":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/wp-json\/wp\/v2\/eap_event\/737\/revisions\/833"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/wp-json\/wp\/v2\/media\/775"}],"wp:attachment":[{"href":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/wp-json\/wp\/v2\/media?parent=737"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.lesia.obspm.fr\/the-good-vibrations-seminars\/wp-json\/wp\/v2\/categories?post=737"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}