{"id":37780,"date":"2024-04-28T21:33:31","date_gmt":"2024-04-28T21:33:31","guid":{"rendered":"https:\/\/www.africa-press.net\/gabon\/politique\/le-trou-noir-de-la-voie-lactee-pourrait-entrer-en-eruption"},"modified":"2024-04-28T21:57:18","modified_gmt":"2024-04-28T21:57:18","slug":"le-trou-noir-de-la-voie-lactee-pourrait-entrer-en-eruption","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/gabon\/toutes-les-actualites\/le-trou-noir-de-la-voie-lactee-pourrait-entrer-en-eruption","title":{"rendered":"Le trou noir de la Voie lact\u00e9e pourrait entrer en \u00e9ruption"},"content":{"rendered":"<p><span style=\"color: #ff6600\"><strong>Africa-Press &#8211; Gabon. <\/strong><\/span>Le trou noir supermassif SgrA*, 4,3 millions de masses solaires niche\u0301es au c\u0153ur de la Voie lacte\u0301e, est au bord de la crise de nerfs. C&rsquo;est ce que sugge\u0300re une e\u0301tude dirige\u0301e par Ruth Daly a\u0300 l&rsquo;Universite\u0301 d&rsquo;E\u0301tat de Pennsylvanie (E\u0301tats-Unis).<\/p>\n<p><b>Rotation du trou noir sur lui-me\u0302me<\/b><\/p>\n<p>Avec son e\u0301quipe, l&rsquo;astrophysicienne a e\u0301tudie\u0301 la rotation du trou noir sur lui-me\u0302me a\u0300 partir du comportement de la matie\u0300re formant son disque d&rsquo;accre\u0301tion. Les chercheurs ont pour cela utilise\u0301 le rayonnement X de SgrA*, collecte\u0301 par le te\u0301lescope spatial Chandra, et le rayonnement radio gra\u0302ce au Very Large Array (VLA), au Nouveau-Mexique.<\/p>\n<p><b>Un phare de rayons X<\/b><\/p>\n<p>Leurs observations re\u0301ve\u0300lent que le trou noir tourne tre\u0300s vite sur lui-me\u0302me, a\u0300 60 % de la vitesse maximale autorise\u0301e par les lois de la physique. Or, cette vitesse constitue une re\u0301serve d&rsquo;e\u0301nergie conside\u0301rable si un nuage de gaz ou une e\u0301toile venait a\u0300 s&rsquo;e\u0301garer a\u0300 proximite\u0301&#8230; SgrA* transformerait alors cette matie\u0300re en puissants jets d&rsquo;e\u0301nergie. Jusqu&rsquo;ici endormi, il se mettrait a\u0300 briller tel un phare de rayons X dans la galaxie.<\/p>\n<p><strong>Pour plus d&rsquo;informations et d&rsquo;analyses sur la <a href=\"https:\/\/www.africa-press.net\/gabon\">Gabon<\/a>, suivez <a href=\"https:\/\/www.africa-press.net\/\">Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Gabon. Le trou noir supermassif SgrA*, 4,3 millions de masses solaires niche\u0301es au c\u0153ur de la Voie lacte\u0301e, est au bord de la crise de nerfs. C&rsquo;est ce que sugge\u0300re une e\u0301tude dirige\u0301e par Ruth Daly a\u0300 l&rsquo;Universite\u0301 d&rsquo;E\u0301tat de Pennsylvanie (E\u0301tats-Unis). Rotation du trou noir sur lui-me\u0302me Avec son e\u0301quipe, l&rsquo;astrophysicienne a [&hellip;]<\/p>\n","protected":false},"author":82,"featured_media":37779,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[36,50,49],"class_list":["post-37780","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-africa-press","tag-africa-press-gabon","tag-gabon"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Le trou noir de la Voie lact\u00e9e pourrait entrer en \u00e9ruption - Gabon<\/title>\n<meta name=\"description\" content=\"Le trou noir supermassif SgrA*, 4,3 millions de masses solaires niche\u0301es au c\u0153ur de la Voie lacte\u0301e, est au bord de la c ...\" \/>\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\/gabon\/toutes-les-actualites\/le-trou-noir-de-la-voie-lactee-pourrait-entrer-en-eruption\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Le trou noir de la Voie lact\u00e9e pourrait entrer en \u00e9ruption\" \/>\n<meta property=\"og:description\" content=\"Le trou noir supermassif SgrA*, 4,3 millions de masses solaires niche\u0301es au c\u0153ur de la Voie lacte\u0301e, est au bord de la c ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/gabon\/toutes-les-actualites\/le-trou-noir-de-la-voie-lactee-pourrait-entrer-en-eruption\" \/>\n<meta property=\"og:site_name\" content=\"Gabon\" \/>\n<meta property=\"article:published_time\" content=\"2024-04-28T21:33:31+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-28T21:57:18+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/gabon\/sites\/54\/2024\/04\/sm_1714328530.041816.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"901\" \/>\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\/gabon\/toutes-les-actualites\/le-trou-noir-de-la-voie-lactee-pourrait-entrer-en-eruption#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/gabon\/toutes-les-actualites\/le-trou-noir-de-la-voie-lactee-pourrait-entrer-en-eruption\"},\"author\":{\"name\":\"cfeditorfr\",\"@id\":\"https:\/\/www.africa-press.net\/gabon\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\"},\"headline\":\"Le trou noir de la Voie lact\u00e9e pourrait entrer en \u00e9ruption\",\"datePublished\":\"2024-04-28T21:33:31+00:00\",\"dateModified\":\"2024-04-28T21:57:18+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/gabon\/toutes-les-actualites\/le-trou-noir-de-la-voie-lactee-pourrait-entrer-en-eruption\"},\"wordCount\":238,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/gabon\/toutes-les-actualites\/le-trou-noir-de-la-voie-lactee-pourrait-entrer-en-eruption#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/gabon\/sites\/54\/2024\/04\/sm_1714328530.041816.jpg\",\"keywords\":[\"Africa Press\",\"Africa Press-Gabon\",\"Gabon\"],\"articleSection\":[\"Divers\",\"Toutes les actualit\u00e9s\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/gabon\/toutes-les-actualites\/le-trou-noir-de-la-voie-lactee-pourrait-entrer-en-eruption#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/gabon\/toutes-les-actualites\/le-trou-noir-de-la-voie-lactee-pourrait-entrer-en-eruption\",\"url\":\"https:\/\/www.africa-press.net\/gabon\/toutes-les-actualites\/le-trou-noir-de-la-voie-lactee-pourrait-entrer-en-eruption\",\"name\":\"Le trou noir de la Voie lact\u00e9e pourrait entrer en \u00e9ruption - 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