{"id":143315,"date":"2019-04-10T15:46:26","date_gmt":"2019-04-10T14:46:26","guid":{"rendered":"https:\/\/www.realites.com.tn\/?p=143315"},"modified":"2019-04-10T15:47:05","modified_gmt":"2019-04-10T14:47:05","slug":"astronomie-le-secret-des-trous-noirs-devoile","status":"publish","type":"post","link":"https:\/\/realites.com.tn\/fr\/astronomie-le-secret-des-trous-noirs-devoile\/","title":{"rendered":"Astronomie : Le secret des trous noirs d\u00e9voil\u00e9 ?"},"content":{"rendered":"<p>L&rsquo;acad\u00e9mie chinoise des sciences vient de diffuser les premi\u00e8res images d&rsquo;un trou noir ce mercredi \u00e0 Shanghai. Les donn\u00e9es du trou noir ont \u00e9t\u00e9 capt\u00e9es par\u00a0 le t\u00e9lescope du projet \u00ab\u00a0Event Horizon Telescope (EHT)\u00a0\u00bb qui est un programme de coop\u00e9ration mondial cr\u00e9\u00e9 par plus de 200 chercheurs de par le monde.<br \/>\nLe monde va, de ce fait, voir pour la premi\u00e8re fois, \u00e0 travers une image consid\u00e9r\u00e9e la premi\u00e8re du genre prise par ce t\u00e9lescope.<\/p>\n<div id=\"attachment_143318\" style=\"width: 536px\" class=\"wp-caption alignnone\"><img fetchpriority=\"high\" decoding=\"async\" aria-describedby=\"caption-attachment-143318\" class=\"wp-image-143318 size-full\" src=\"https:\/\/www.realites.com.tn\/wp-content\/uploads\/2019\/04\/trou-noir.jpg\" alt=\"\" width=\"526\" height=\"296\" srcset=\"https:\/\/realites.com.tn\/fr\/wp-content\/uploads\/2019\/04\/trou-noir.jpg 526w, https:\/\/realites.com.tn\/fr\/wp-content\/uploads\/2019\/04\/trou-noir-300x169.jpg 300w\" sizes=\"(max-width: 526px) 100vw, 526px\" \/><p id=\"caption-attachment-143318\" class=\"wp-caption-text\">La premi\u00e8re image du trou noir diffus\u00e9e ce 10 avril 2019 et capt\u00e9e par (Event Horizon T\u00e9lescope Collaboration)<\/p><\/div>\n<p>Ce projet a \u00e9t\u00e9 activ\u00e9 la premi\u00e8re fois en avril 2017. Il a r\u00e9ussi \u00e0 r\u00e9unir des donn\u00e9es sur les trous noirs avec 8 autres t\u00e9lescopes r\u00e9partis \u00e0 travers le monde dont l&rsquo;un situ\u00e9 au p\u00f4le sud.<br \/>\nSelon les savants, le t\u00e9lescope a rassembl\u00e9 les donn\u00e9es de deux\u00a0 tr\u00e8s grands trous noirs l&rsquo;un dans la galaxie de la voie lact\u00e9e, l&rsquo;autre dans la galaxie de l&rsquo;Amas de la Vierge.<\/p>\n<p><iframe title=\"\u0627\u0644\u0639\u0627\u0644\u0645 \u0639\u0644\u0649 \u0645\u0648\u0639\u062f \u0645\u0639 \u0623\u0648\u0644 \u0635\u0648\u0631\u0629 \u0644\u062b\u0642\u0628 \u0623\u0633\u0648\u062f\" width=\"1170\" height=\"658\" src=\"https:\/\/www.youtube.com\/embed\/Z8kjvaajTFc?start=78&#038;feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/p>\n<p><strong>Pour mieux comprendre :<br \/>\n<\/strong><\/p>\n<p><strong><span style=\"font-family: wingdings, 'zapf dingbats'\">t<span style=\"font-family: georgia, palatino, serif\">\u00a0<\/span><\/span>Qu&rsquo;est-ce qu&rsquo;un trou noir\u00a0?<\/strong>\u00a0Les trous noirs ont \u00e9t\u00e9 th\u00e9oris\u00e9s, mod\u00e9lis\u00e9s, d\u00e9tect\u00e9s, mais jamais observ\u00e9s. Alors tout le monde se le demande : c&rsquo;est comment en vrai la photo d&rsquo;un trou noir ? Selon la loi de la relativit\u00e9 g\u00e9n\u00e9rale publi\u00e9e en 1915 par Albert Einstein, qui th\u00e9orise leur fonctionnement, l&rsquo;attraction gravitationnelle exerc\u00e9e par ces monstres est telle que rien ne peut s&rsquo;en \u00e9chapper, ni la mati\u00e8re ni la lumi\u00e8re, quelle que soit la longueur d&rsquo;onde. R\u00e9sultat : ils sont invisibles.<\/p>\n<p><strong><span style=\"font-family: wingdings, 'zapf dingbats'\">t<span style=\"font-family: georgia, palatino, serif\">\u00a0<\/span><\/span><\/strong><strong>Les chercheurs ont\u00a0traqu\u00e9 deux trous noirs.<\/strong>\u00a0Le premier, appel\u00e9 \u00ab\u00a0Sagittaire A*\u00a0\u00bb, est situ\u00e9 au centre de notre galaxie, sa masse \u00e9quivaut \u00e0 quatre millions de fois \u00e0 celle du Soleil. Il se situe \u00e0 26\u00a0000\u00a0ann\u00e9es-lumi\u00e8re de nous. Le second, appel\u00e9 M87, se trouve au centre de la galaxie elliptique superg\u00e9ante Virgo A. Sa masse est 3,5\u00a0millions de fois celle du Soleil. Il\u00a0est \u00e0 une distance de 54 millions d&rsquo;ann\u00e9es-lumi\u00e8re de la Terre. Les chercheurs ont collect\u00e9 les premi\u00e8res donn\u00e9es en avril 2017 gr\u00e2ce \u00e0 un r\u00e9seau mondial de t\u00e9lescopes reli\u00e9s en interf\u00e9rom\u00e9trie, situ\u00e9s en Arizona, \u00e0 Hawa\u00ef, au Mexique, au Chili, en Espagne, en Antarctique, en France et au Groenland. (D&rsquo;apr\u00e8s Franceinfo).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>L&rsquo;acad\u00e9mie chinoise des sciences vient de diffuser les premi\u00e8res images d&rsquo;un trou noir ce mercredi \u00e0 Shanghai. Les donn\u00e9es du trou noir ont \u00e9t\u00e9 capt\u00e9es par\u00a0 le t\u00e9lescope du projet&hellip;<\/p>\n","protected":false},"author":60,"featured_media":143318,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-143315","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-a-la-une"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Astronomie : Le secret des trous noirs d\u00e9voil\u00e9 ? - R\u00e9alit\u00e9s Magazine<\/title>\n<meta name=\"description\" content=\"L&#039;acad\u00e9mie chinoise des sciences vient de diffuser les premi\u00e8res images d&#039;un trou noir ce mercredi \u00e0 Shanghai. Les donn\u00e9es du trou noir ont \u00e9t\u00e9 capt\u00e9es\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/realites.com.tn\/fr\/astronomie-le-secret-des-trous-noirs-devoile\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Astronomie : Le secret des trous noirs d\u00e9voil\u00e9 ? - R\u00e9alit\u00e9s Magazine\" \/>\n<meta property=\"og:description\" content=\"L&#039;acad\u00e9mie chinoise des sciences vient de diffuser les premi\u00e8res images d&#039;un trou noir ce mercredi \u00e0 Shanghai. Les donn\u00e9es du trou noir ont \u00e9t\u00e9 capt\u00e9es\" \/>\n<meta property=\"og:url\" content=\"https:\/\/realites.com.tn\/fr\/astronomie-le-secret-des-trous-noirs-devoile\/\" \/>\n<meta property=\"og:site_name\" content=\"R\u00e9alit\u00e9s Magazine\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/realites.tn\/\" \/>\n<meta property=\"article:published_time\" content=\"2019-04-10T14:46:26+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2019-04-10T14:47:05+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/realites.com.tn\/fr\/wp-content\/uploads\/2019\/04\/trou-noir.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"526\" \/>\n\t<meta property=\"og:image:height\" content=\"296\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"La R\u00e9daction\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"La R\u00e9daction\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/realites.com.tn\/fr\/astronomie-le-secret-des-trous-noirs-devoile\/\",\"url\":\"https:\/\/realites.com.tn\/fr\/astronomie-le-secret-des-trous-noirs-devoile\/\",\"name\":\"Astronomie : Le secret des trous noirs d\u00e9voil\u00e9 ? - R\u00e9alit\u00e9s Magazine\",\"isPartOf\":{\"@id\":\"https:\/\/realites.com.tn\/fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/realites.com.tn\/fr\/astronomie-le-secret-des-trous-noirs-devoile\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/realites.com.tn\/fr\/astronomie-le-secret-des-trous-noirs-devoile\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/realites.com.tn\/fr\/wp-content\/uploads\/2019\/04\/trou-noir.jpg\",\"datePublished\":\"2019-04-10T14:46:26+00:00\",\"dateModified\":\"2019-04-10T14:47:05+00:00\",\"author\":{\"@id\":\"https:\/\/realites.com.tn\/fr\/#\/schema\/person\/438b71c29a257d955d96d8aef42336e7\"},\"description\":\"L'acad\u00e9mie chinoise des sciences vient de diffuser les premi\u00e8res images d'un trou noir ce mercredi \u00e0 Shanghai. Les donn\u00e9es du trou noir ont \u00e9t\u00e9 capt\u00e9es\",\"breadcrumb\":{\"@id\":\"https:\/\/realites.com.tn\/fr\/astronomie-le-secret-des-trous-noirs-devoile\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/realites.com.tn\/fr\/astronomie-le-secret-des-trous-noirs-devoile\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/realites.com.tn\/fr\/astronomie-le-secret-des-trous-noirs-devoile\/#primaryimage\",\"url\":\"https:\/\/realites.com.tn\/fr\/wp-content\/uploads\/2019\/04\/trou-noir.jpg\",\"contentUrl\":\"https:\/\/realites.com.tn\/fr\/wp-content\/uploads\/2019\/04\/trou-noir.jpg\",\"width\":526,\"height\":296},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/realites.com.tn\/fr\/astronomie-le-secret-des-trous-noirs-devoile\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/realites.com.tn\/fr\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Astronomie : Le secret des trous noirs d\u00e9voil\u00e9 ?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/realites.com.tn\/fr\/#website\",\"url\":\"https:\/\/realites.com.tn\/fr\/\",\"name\":\"R\u00e9alit\u00e9s Magazine\",\"description\":\"Actualit\u00e9s de la Tunisie\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/realites.com.tn\/fr\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/realites.com.tn\/fr\/#\/schema\/person\/438b71c29a257d955d96d8aef42336e7\",\"name\":\"La R\u00e9daction\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/realites.com.tn\/fr\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/fbe9ab25fcc82b6e660ad5648f91eadb?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/fbe9ab25fcc82b6e660ad5648f91eadb?s=96&d=mm&r=g\",\"caption\":\"La R\u00e9daction\"},\"url\":\"https:\/\/realites.com.tn\/fr\/author\/realites5201\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Astronomie : Le secret des trous noirs d\u00e9voil\u00e9 ? - R\u00e9alit\u00e9s Magazine","description":"L'acad\u00e9mie chinoise des sciences vient de diffuser les premi\u00e8res images d'un trou noir ce mercredi \u00e0 Shanghai. Les donn\u00e9es du trou noir ont \u00e9t\u00e9 capt\u00e9es","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/realites.com.tn\/fr\/astronomie-le-secret-des-trous-noirs-devoile\/","og_locale":"fr_FR","og_type":"article","og_title":"Astronomie : Le secret des trous noirs d\u00e9voil\u00e9 ? - R\u00e9alit\u00e9s Magazine","og_description":"L'acad\u00e9mie chinoise des sciences vient de diffuser les premi\u00e8res images d'un trou noir ce mercredi \u00e0 Shanghai. Les donn\u00e9es du trou noir ont \u00e9t\u00e9 capt\u00e9es","og_url":"https:\/\/realites.com.tn\/fr\/astronomie-le-secret-des-trous-noirs-devoile\/","og_site_name":"R\u00e9alit\u00e9s Magazine","article_publisher":"https:\/\/www.facebook.com\/realites.tn\/","article_published_time":"2019-04-10T14:46:26+00:00","article_modified_time":"2019-04-10T14:47:05+00:00","og_image":[{"width":526,"height":296,"url":"https:\/\/realites.com.tn\/fr\/wp-content\/uploads\/2019\/04\/trou-noir.jpg","type":"image\/jpeg"}],"author":"La R\u00e9daction","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"La R\u00e9daction","Dur\u00e9e de lecture estim\u00e9e":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/realites.com.tn\/fr\/astronomie-le-secret-des-trous-noirs-devoile\/","url":"https:\/\/realites.com.tn\/fr\/astronomie-le-secret-des-trous-noirs-devoile\/","name":"Astronomie : Le secret des trous noirs d\u00e9voil\u00e9 ? - R\u00e9alit\u00e9s Magazine","isPartOf":{"@id":"https:\/\/realites.com.tn\/fr\/#website"},"primaryImageOfPage":{"@id":"https:\/\/realites.com.tn\/fr\/astronomie-le-secret-des-trous-noirs-devoile\/#primaryimage"},"image":{"@id":"https:\/\/realites.com.tn\/fr\/astronomie-le-secret-des-trous-noirs-devoile\/#primaryimage"},"thumbnailUrl":"https:\/\/realites.com.tn\/fr\/wp-content\/uploads\/2019\/04\/trou-noir.jpg","datePublished":"2019-04-10T14:46:26+00:00","dateModified":"2019-04-10T14:47:05+00:00","author":{"@id":"https:\/\/realites.com.tn\/fr\/#\/schema\/person\/438b71c29a257d955d96d8aef42336e7"},"description":"L'acad\u00e9mie chinoise des sciences vient de diffuser les premi\u00e8res images d'un trou noir ce mercredi \u00e0 Shanghai. Les donn\u00e9es du trou noir ont \u00e9t\u00e9 capt\u00e9es","breadcrumb":{"@id":"https:\/\/realites.com.tn\/fr\/astronomie-le-secret-des-trous-noirs-devoile\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/realites.com.tn\/fr\/astronomie-le-secret-des-trous-noirs-devoile\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/realites.com.tn\/fr\/astronomie-le-secret-des-trous-noirs-devoile\/#primaryimage","url":"https:\/\/realites.com.tn\/fr\/wp-content\/uploads\/2019\/04\/trou-noir.jpg","contentUrl":"https:\/\/realites.com.tn\/fr\/wp-content\/uploads\/2019\/04\/trou-noir.jpg","width":526,"height":296},{"@type":"BreadcrumbList","@id":"https:\/\/realites.com.tn\/fr\/astronomie-le-secret-des-trous-noirs-devoile\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/realites.com.tn\/fr\/"},{"@type":"ListItem","position":2,"name":"Astronomie : Le secret des trous noirs d\u00e9voil\u00e9 ?"}]},{"@type":"WebSite","@id":"https:\/\/realites.com.tn\/fr\/#website","url":"https:\/\/realites.com.tn\/fr\/","name":"R\u00e9alit\u00e9s Magazine","description":"Actualit\u00e9s de la Tunisie","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/realites.com.tn\/fr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Person","@id":"https:\/\/realites.com.tn\/fr\/#\/schema\/person\/438b71c29a257d955d96d8aef42336e7","name":"La R\u00e9daction","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/realites.com.tn\/fr\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/fbe9ab25fcc82b6e660ad5648f91eadb?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/fbe9ab25fcc82b6e660ad5648f91eadb?s=96&d=mm&r=g","caption":"La R\u00e9daction"},"url":"https:\/\/realites.com.tn\/fr\/author\/realites5201\/"}]}},"jetpack_featured_media_url":"https:\/\/realites.com.tn\/fr\/wp-content\/uploads\/2019\/04\/trou-noir.jpg","jetpack_sharing_enabled":true,"views":41,"_links":{"self":[{"href":"https:\/\/realites.com.tn\/fr\/wp-json\/wp\/v2\/posts\/143315","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/realites.com.tn\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/realites.com.tn\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/realites.com.tn\/fr\/wp-json\/wp\/v2\/users\/60"}],"replies":[{"embeddable":true,"href":"https:\/\/realites.com.tn\/fr\/wp-json\/wp\/v2\/comments?post=143315"}],"version-history":[{"count":0,"href":"https:\/\/realites.com.tn\/fr\/wp-json\/wp\/v2\/posts\/143315\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/realites.com.tn\/fr\/wp-json\/wp\/v2\/media\/143318"}],"wp:attachment":[{"href":"https:\/\/realites.com.tn\/fr\/wp-json\/wp\/v2\/media?parent=143315"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/realites.com.tn\/fr\/wp-json\/wp\/v2\/categories?post=143315"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/realites.com.tn\/fr\/wp-json\/wp\/v2\/tags?post=143315"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}