{"id":26865,"date":"2018-08-15T11:00:30","date_gmt":"2018-08-15T09:00:30","guid":{"rendered":"http:\/\/www.h-its.org\/?p=26865"},"modified":"2019-09-24T11:40:17","modified_gmt":"2019-09-24T09:40:17","slug":"explosions-of-rapidly-rotating-white-dwarfs","status":"publish","type":"post","link":"https:\/\/www.h-its.org\/de\/2018\/08\/15\/explosions-of-rapidly-rotating-white-dwarfs\/","title":{"rendered":"Thermonuclear explosions of rapidly differentially rotating white dwarfs"},"content":{"rendered":"\n<div class=\"wp-block-image\"><figure class=\"alignleft\"><img decoding=\"async\" src=\"https:\/\/www.h-its.org\/wp-content\/uploads\/2018\/08\/expl_evol-268x1024.png\" alt=\"\" class=\"wp-image-26863\" \/><figcaption>Temporal evolution of the explosion for one of the models of Fink et al. 2018.<\/figcaption><\/figure><\/div>\n\n\n\n<p>In an <a href=\"https:\/\/doi.org\/10.1051\/0004-6361\/201833475\" target=\"_blank\" rel=\"noopener noreferrer\">upcoming publication<\/a> in <a href=\"https:\/\/www.aanda.org\" target=\"_blank\" rel=\"noopener noreferrer\">Astronomy &amp; Astrophysics<\/a>, an international team of researchers, including PSO scientists Markus Kromer and Friedrich R\u00f6pke, studied thermonuclear explosions of rapidly differentially rotating white dwarfs. Such systems have been proposed to explain the observed sub-class of &#8222;superluminous&#8220; Type Ia supernovae. The paper presents three-dimensional hydrodynamics and radiative transfer simulations for different explosion mechanisms in various differentially rotating carbon-oxygen white dwarfs close to their respective limit of stability. The results are inconsistent with any known subclass of Type Ia supernovae, including &#8222;superluminous&#8220; Type Ia supernovae. Implications of these findings for the explosion mechanism and for the existence of differentially rotating white dwarfs as supernova progenitors are discussed.<\/p>\n\n\n\n<p>Publication:<br>M. Fink, M. Kromer, W. Hillebrandt, F.K. R\u00f6pke, R. Pakmor, I.R. Seitenzahl and S.A. Sim (2018): <a href=\"https:\/\/doi.org\/10.1051\/0004-6361\/201833475\" target=\"_blank\" rel=\"noopener noreferrer\">Thermonuclear explosions of rapidly differentially rotating white dwarfs: candidates for superluminous Type Ia supernovae?<\/a> A&amp;A, Accepted: 17 July 2018. Full text available at <a href=\"https:\/\/arxiv.org\/abs\/1807.10199\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/arxiv.org\/abs\/1807.10199<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In an upcoming publication in Astronomy &amp; Astrophysics, an international team of researchers, including PSO scientists Markus Kromer and Friedrich R\u00f6&#8230;<\/p>\n","protected":false},"author":57,"featured_media":30274,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[1],"hits-research-group":[1279],"class_list":["post-26865","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gruppen-news","hits-research-group-pso-de"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Thermonuclear explosions of rapidly differentially rotating white dwarfs - 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