{"id":215272,"date":"2025-06-03T02:17:15","date_gmt":"2025-06-03T07:17:15","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2025\/06\/asteroseismology-study-uncovers-new-pulsation-modes-in-ultra-massive-white-dwarf"},"modified":"2025-06-03T02:17:15","modified_gmt":"2025-06-03T07:17:15","slug":"asteroseismology-study-uncovers-new-pulsation-modes-in-ultra-massive-white-dwarf","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2025\/06\/asteroseismology-study-uncovers-new-pulsation-modes-in-ultra-massive-white-dwarf","title":{"rendered":"Asteroseismology study uncovers new pulsation modes in ultra-massive white dwarf"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/asteroseismology-study-uncovers-new-pulsation-modes-in-ultra-massive-white-dwarf2.jpg\"><\/a><\/p>\n<p>Based on time-series photometry from three different telescopes, an international team of astronomers has performed a detailed asteroseismology study of WD J0049\u22122525\u2014the most massive pulsating white dwarf. The study, <a href=\"https:\/\/arxiv.org\/abs\/2505.17177\" target=\"_blank\">published<\/a> May 22 on the <i>arXiv<\/i> pre-print server, resulted in the detection of new pulsation modes of this white dwarf.<\/p>\n<p>White dwarfs (WDs) are stellar cores left behind after a star has exhausted its <a href=\"https:\/\/phys.org\/tags\/nuclear+fuel\/\" rel=\"tag\" class=\"\">nuclear fuel<\/a> and represent the final evolutionary stage for the vast majority of stars. Observations show that most WDs have primary spectral classification DA as they exhibit hydrogen-dominated atmospheres. However, a small fraction of WDs showcases traces of heavier elements.<\/p>\n<p>In pulsating WDs, luminosity varies due to non-radial gravity wave pulsations within these objects. One subtype of pulsating WDs is known as DAVs, or ZZ Ceti stars, which have only hydrogen absorption lines in their spectra.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Based on time-series photometry from three different telescopes, an international team of astronomers has performed a detailed asteroseismology study of WD J0049\u22122525\u2014the most massive pulsating white dwarf. The study, published May 22 on the arXiv pre-print server, resulted in the detection of new pulsation modes of this white dwarf. White dwarfs (WDs) are stellar cores [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1497,8],"tags":[],"class_list":["post-215272","post","type-post","status-publish","format-standard","hentry","category-energy","category-space"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/215272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=215272"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/215272\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=215272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=215272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=215272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}