{"id":56006,"date":"2023-12-17T10:26:20","date_gmt":"2023-12-17T10:26:20","guid":{"rendered":"https:\/\/www.africa-press.net\/tchad\/politique\/cannibalisme-stellaire-une-etoile-de-thorne-zytkow-abrite-une-autre-etoile-en-son-sein"},"modified":"2023-12-18T12:07:59","modified_gmt":"2023-12-18T12:07:59","slug":"cannibalisme-stellaire-une-etoile-de-thorne-zytkow-abrite-une-autre-etoile-en-son-sein","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/cannibalisme-stellaire-une-etoile-de-thorne-zytkow-abrite-une-autre-etoile-en-son-sein","title":{"rendered":"\u00ab\u00a0Cannibalisme\u00a0\u00bb stellaire\u00a0: une \u00e9toile de Thorne-Zytkow abrite une autre \u00e9toile en son sein"},"content":{"rendered":"

Africa-Press – Tchad. <\/strong><\/span>Du \u00ab\u00a0cannibalisme\u00a0\u00bb stellaire, voila\u0300 ce qu’ont imagine\u0301 dans les anne\u0301es 1970 le physicien ame\u0301ricain Kip Thorne (prix Nobel 2017) et l’astrophysicienne polonaise Anna Zytkow. Il pourrait re\u0301sulter de la fusion entre une e\u0301toile a\u0300 neutrons de quelques kilome\u0300tres de diame\u0300tre et une ge\u0301ante rouge de plusieurs millions de kilome\u0300tres. Ce serait possible car les e\u0301toiles vivent tre\u0300s souvent \u00ab\u00a0en couple\u00a0\u00bb.<\/p>\n

Un cannibalisme qui fait briller<\/b><\/p>\n

Si l’une d’elles explose en supernova et se transforme en e\u0301toile a\u0300 neutrons, elle pourrait dans certains cas s’installer au c\u0153ur de sa compagne encore active. Ce cannibalisme aurait pour effet de la faire briller tre\u0300s puissamment, a\u0300 la manie\u0300re d’une superge\u0301ante rouge. Des objets encore hypothe\u0301tiques mais peut-e\u0302tre plus pour longtemps.<\/p>\n

Une se\u0301rieuse candidate de\u0301couverte<\/b><\/p>\n

L’e\u0301toile HV 2112, de\u0301couverte en 2014, constitue la candidate la plus se\u0301rieuse pour incarner une \u00ab\u00a0TZ\u00a0\u00bb. Emily Levesque, de l’Universite\u0301 de Washington (E\u0301tats-Unis), e\u0301tudie l’e\u0301toile depuis 2014 et envisage d’utiliser les ondes gravitationnelles gra\u0302ce aux de\u0301tecteurs Advanced Virgo pour prouver qu’il ne s’agit pas d’une superge\u0301ante classique. A\u0300 suivre.<\/p>\n

Pour plus d’informations et d’analyses sur la Tchad<\/a>, suivez Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Tchad. Du \u00ab\u00a0cannibalisme\u00a0\u00bb stellaire, voila\u0300 ce qu’ont imagine\u0301 dans les anne\u0301es 1970 le physicien ame\u0301ricain Kip Thorne (prix Nobel 2017) et l’astrophysicienne polonaise Anna Zytkow. Il pourrait re\u0301sulter de la fusion entre une e\u0301toile a\u0300 neutrons de quelques kilome\u0300tres de diame\u0300tre et une ge\u0301ante rouge de plusieurs millions de kilome\u0300tres. Ce serait possible […]<\/p>\n","protected":false},"author":82,"featured_media":56005,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[37,292,29],"class_list":["post-56006","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-africa-press","tag-africa-press-tchad","tag-tchad"],"yoast_head":"\n"Cannibalisme" stellaire\u00a0: une \u00e9toile de Thorne-Zytkow abrite une autre \u00e9toile en son sein - tchad<\/title>\n<meta name=\"description\" content=\"Du "cannibalisme" stellaire, voila\u0300 ce qu'ont imagine\u0301 dans les anne\u0301es 1970 le physicien ame\u0301ricain Kip Thorne (prix No ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/cannibalisme-stellaire-une-etoile-de-thorne-zytkow-abrite-une-autre-etoile-en-son-sein\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\""Cannibalisme" stellaire\u00a0: une \u00e9toile de Thorne-Zytkow abrite une autre \u00e9toile en son sein\" \/>\n<meta property=\"og:description\" content=\"Du "cannibalisme" stellaire, voila\u0300 ce qu'ont imagine\u0301 dans les anne\u0301es 1970 le physicien ame\u0301ricain Kip Thorne (prix No ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/cannibalisme-stellaire-une-etoile-de-thorne-zytkow-abrite-une-autre-etoile-en-son-sein\" \/>\n<meta property=\"og:site_name\" content=\"tchad\" \/>\n<meta property=\"article:published_time\" content=\"2023-12-17T10:26:20+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-12-18T12:07:59+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/tchad\/sites\/41\/2023\/12\/sm_1702798299.416689.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"898\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"cfeditorfr\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"cfeditorfr\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/cannibalisme-stellaire-une-etoile-de-thorne-zytkow-abrite-une-autre-etoile-en-son-sein#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/cannibalisme-stellaire-une-etoile-de-thorne-zytkow-abrite-une-autre-etoile-en-son-sein\"},\"author\":{\"name\":\"cfeditorfr\",\"@id\":\"https:\/\/www.africa-press.net\/tchad\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\"},\"headline\":\"\u00ab\u00a0Cannibalisme\u00a0\u00bb stellaire\u00a0: une \u00e9toile de Thorne-Zytkow abrite une autre \u00e9toile en son sein\",\"datePublished\":\"2023-12-17T10:26:20+00:00\",\"dateModified\":\"2023-12-18T12:07:59+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/cannibalisme-stellaire-une-etoile-de-thorne-zytkow-abrite-une-autre-etoile-en-son-sein\"},\"wordCount\":234,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/cannibalisme-stellaire-une-etoile-de-thorne-zytkow-abrite-une-autre-etoile-en-son-sein#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/tchad\/sites\/41\/2023\/12\/sm_1702798299.416689.jpg\",\"keywords\":[\"Africa Press\",\"Africa Press-Tchad\",\"Tchad\"],\"articleSection\":[\"Divers\",\"Toutes les actualit\u00e9s\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/cannibalisme-stellaire-une-etoile-de-thorne-zytkow-abrite-une-autre-etoile-en-son-sein#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/cannibalisme-stellaire-une-etoile-de-thorne-zytkow-abrite-une-autre-etoile-en-son-sein\",\"url\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/cannibalisme-stellaire-une-etoile-de-thorne-zytkow-abrite-une-autre-etoile-en-son-sein\",\"name\":\"\\\"Cannibalisme\\\" stellaire\u00a0: une \u00e9toile de Thorne-Zytkow abrite une autre \u00e9toile en son sein - 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