{"id":48847,"date":"2026-04-23T11:55:37","date_gmt":"2026-04-23T11:55:37","guid":{"rendered":"https:\/\/www.africa-press.net\/togo\/politique\/trou-noir-le-theoreme-dhawking-confirme-par-lobservation-2"},"modified":"2026-05-06T12:39:36","modified_gmt":"2026-05-06T12:39:36","slug":"trou-noir-le-theoreme-dhawking-confirme-par-lobservation-2","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/togo\/toutes-les-actualites\/trou-noir-le-theoreme-dhawking-confirme-par-lobservation-2","title":{"rendered":"Trou Noir: le The\u0301ore\u0300me D&rsquo;Hawking Confirme\u0301 par L&rsquo;Observation"},"content":{"rendered":"<p><span class=\"ap-article-header-tag\"> <strong>Africa-Press &#8211; Togo. <\/strong> <\/span>Dix ans apre\u0300s la premie\u0300re de\u0301tection d&rsquo;ondes gravitationnelles, le 14 septembre 2015, la collaboration Ligo-Virgo (E\u0301tats-Unis\/Europe), rejointe depuis par Kagra (Japon), s&rsquo;offre un cadeau parfaitement choisi: la confirmation par l&rsquo;observation d&rsquo;un the\u0301ore\u0300me formule\u0301 en 1971 par Stephen Hawking.<\/p>\n<p><b>Lorsque Hawking formule sa the\u0301orie, l&rsquo;existence me\u0302me des trous noirs e\u0301tait hypothe\u0301tique<\/b><\/p>\n<p>L&rsquo;astrophysicien anglais avait alors e\u0301nonce\u0301 que la surface totale des trous noirs ne peut qu&rsquo;augmenter au fil de leur existence, en de\u0301pit de l&rsquo;e\u0301mission d&rsquo;ondes gravitationnelles qui tendraient pluto\u0302t a\u0300 la diminuer. Cette pre\u0301diction restait the\u0301orique. L&rsquo;e\u0301ve\u0301nement GW250114, enregistre\u0301 en janvier 2025, a livre\u0301 un signal si net qu&rsquo;il a permis de la ve\u0301rifier de visu, ce dont l&rsquo;astrophysicien n&rsquo;aurait sans doute pas ose\u0301 re\u0302ver il y a cinquante ans, lorsque l&rsquo;existence me\u0302me des trous noirs restait hypothe\u0301tique.<\/p>\n<p><b>Une confiance de 99,999 %<\/b><\/p>\n<p>Deux astres de 30 a\u0300 40 masses solaires, d&rsquo;environ 240.000 km2, ont ainsi fusionne\u0301 pour former un trou noir final de 400.000 km2 &#8211; une augmentation conforme au the\u0301ore\u0300me de Hawking, ve\u0301rifie\u0301 ici avec une confiance de 99,999 %.<\/p>\n<p class=\"ap-article-footer-note\">Retrouvez plus d\u2019actualit\u00e9s et d\u2019analyses sur <span class=\"ap-highlight-country\">Togo<\/span> sur le site <span class=\"ap-highlight-brand\">Africa Press<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Togo. Dix ans apre\u0300s la premie\u0300re de\u0301tection d&rsquo;ondes gravitationnelles, le 14 septembre 2015, la collaboration Ligo-Virgo (E\u0301tats-Unis\/Europe), rejointe depuis par Kagra (Japon), s&rsquo;offre un cadeau parfaitement choisi: la confirmation par l&rsquo;observation d&rsquo;un the\u0301ore\u0300me formule\u0301 en 1971 par Stephen Hawking. Lorsque Hawking formule sa the\u0301orie, l&rsquo;existence me\u0302me des trous noirs e\u0301tait hypothe\u0301tique L&rsquo;astrophysicien anglais [&hellip;]<\/p>\n","protected":false},"author":82,"featured_media":48846,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[50],"class_list":["post-48847","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-togo"],"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>Trou Noir: le The\u0301ore\u0300me D&#039;Hawking Confirme\u0301 par L&#039;Observation - Togo<\/title>\n<meta name=\"description\" content=\"-article-header-tag&quot;&gt; Africa-Press - Togo. Dix ans apre\u0300s la premie\u0300re de\u0301tec ...\" \/>\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\/togo\/toutes-les-actualites\/trou-noir-le-theoreme-dhawking-confirme-par-lobservation-2\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Trou Noir: le The\u0301ore\u0300me D&#039;Hawking Confirme\u0301 par L&#039;Observation\" \/>\n<meta property=\"og:description\" content=\"-article-header-tag&quot;&gt; Africa-Press - Togo. 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