{"id":204,"date":"2020-11-28T16:38:27","date_gmt":"2020-11-28T21:38:27","guid":{"rendered":"https:\/\/sites.bu.edu\/buwd\/?p=204"},"modified":"2020-11-28T17:02:54","modified_gmt":"2020-11-28T22:02:54","slug":"pulsations-and-eclipses-in-a-white-dwarf","status":"publish","type":"post","link":"https:\/\/sites.bu.edu\/buwd\/2020\/11\/28\/pulsations-and-eclipses-in-a-white-dwarf\/","title":{"rendered":"Pulsations &#038; eclipses in a white dwarf"},"content":{"rendered":"<p>In March 2020, collaborators led by Steven Parsons at the University of Sheffield <a href=\"https:\/\/ui.adsabs.harvard.edu\/abs\/2020NatAs...4..690P\/abstract\">published in Nature Astronomy<\/a> the first pulsating white dwarf ever found in a binary system that also exhibits eclipses. Having both pulsations and eclipses in this low-mass (0.325 solar-mass) white dwarf will put some exceptional constraints on the star. We already know the radius of the star to 2% precision, less than 300 km, and know its mass to better than 4% &#8212; this will be an excellent benchmark to understand how stars are stripped of mass at the end of their lives. Aside from a <a href=\"https:\/\/www.sheffield.ac.uk\/news\/nr\/physics-astronomy-pulsating-ancient-star-discovery-eclipse-1.884107\">press release with an artist&#8217;s impression from the University of Sheffield<\/a>, a thread with more details can be found here: <a href=\"https:\/\/twitter.com\/jotajotahermes\/status\/1240259598831026177\">https:\/\/twitter.com\/jotajotahermes\/status\/1240259598831026177<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In March 2020, collaborators led by Steven Parsons at the University of Sheffield published in Nature Astronomy the first pulsating white dwarf ever found in a binary system that also exhibits eclipses. Having both pulsations and eclipses in this low-mass (0.325 solar-mass) white dwarf will put some exceptional constraints on the star. We already know [&hellip;]<\/p>\n","protected":false},"author":15801,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/sites.bu.edu\/buwd\/wp-json\/wp\/v2\/posts\/204"}],"collection":[{"href":"https:\/\/sites.bu.edu\/buwd\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sites.bu.edu\/buwd\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sites.bu.edu\/buwd\/wp-json\/wp\/v2\/users\/15801"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.bu.edu\/buwd\/wp-json\/wp\/v2\/comments?post=204"}],"version-history":[{"count":4,"href":"https:\/\/sites.bu.edu\/buwd\/wp-json\/wp\/v2\/posts\/204\/revisions"}],"predecessor-version":[{"id":213,"href":"https:\/\/sites.bu.edu\/buwd\/wp-json\/wp\/v2\/posts\/204\/revisions\/213"}],"wp:attachment":[{"href":"https:\/\/sites.bu.edu\/buwd\/wp-json\/wp\/v2\/media?parent=204"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.bu.edu\/buwd\/wp-json\/wp\/v2\/categories?post=204"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.bu.edu\/buwd\/wp-json\/wp\/v2\/tags?post=204"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}