{"id":139984,"date":"2026-05-21T00:18:11","date_gmt":"2026-05-21T00:18:11","guid":{"rendered":"https:\/\/www.europesays.com\/ch-fr\/139984\/"},"modified":"2026-05-21T00:18:11","modified_gmt":"2026-05-21T00:18:11","slug":"des-astronomes-ont-decouvert-15-nouveaux-pulsars-dans-un-amas-globulaire-proche-de-la-terre","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/ch-fr\/139984\/","title":{"rendered":"Des astronomes ont d\u00e9couvert 15 nouveaux pulsars dans un amas globulaire proche de la Terre"},"content":{"rendered":"<p class=\"bodytext\">Avec l&rsquo;aide du radiot\u00e9lescope MeerKAT ( <a href=\"https:\/\/www.sarao.ac.za\/science\/meerkat\/\" target=\"_blank\" rel=\"nofollow noopener\">), une \u00e9quipe d&rsquo;astronomes a r\u00e9cemment d\u00e9couvert 15 nouvelles ondes millisecondes<\/a>une \u00e9quipe d&rsquo;astronomes a r\u00e9cemment d\u00e9couvert 15 nouveaux <a href=\"http:\/\/www.notebookcheck.net\/A-pulsar-rotating-122-times-per-second-could-be-present-at-the-heart-of-the-Milky-Way.1232013.0.html\" target=\"_self\" class=\"internal-link\" rel=\"nofollow noopener\">millisecondes<\/a>. Ces \u00e9toiles sont situ\u00e9es \u00e0 environ 13 000 ann\u00e9es-lumi\u00e8re de la Terre, dans l&rsquo;amas globulaire 47 Tucanae.  &#13;<\/p>\n<p class=\"bodytext\">Pour rappel, les pulsars sont des \u00e9toiles \u00e0 neutrons d&rsquo;un diam\u00e8tre d&rsquo;environ 20 kilom\u00e8tres et d&rsquo;une masse d&rsquo;environ 1,5 fois celle du Soleil. Ces \u00e9toiles sont donc extr\u00eamement denses et tournent \u00e0 grande vitesse.  &#13;<\/p>\n<p class=\"bodytext\">Ainsi, une \u00e9quipe d&rsquo;astronomes dirig\u00e9e par Weiwei Chen, de l&rsquo;Institut Max Planck de radioastronomie (MPIfR) \u00e0 Bonn, en Allemagne, a r\u00e9cemment annonc\u00e9 la d\u00e9couverte de 15 pulsars millisecondes, \u00e9galement connus sous le nom de MSP. Leurs p\u00e9riodes de rotation sont tr\u00e8s courtes, allant de 1,88 \u00e0 13,03 millisecondes. Et ce n&rsquo;est pas tout, car 12 d&rsquo;entre eux sont des pulsars binaires avec des compagnons de faible masse, tandis que les autres sont des pulsars isol\u00e9s.<\/p>\n","protected":false},"excerpt":{"rendered":"Avec l&rsquo;aide du radiot\u00e9lescope MeerKAT ( ), une \u00e9quipe d&rsquo;astronomes a r\u00e9cemment d\u00e9couvert 15 nouvelles ondes millisecondesune \u00e9quipe&hellip;\n","protected":false},"author":2,"featured_media":139985,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[7],"tags":[35675,13013,1301,9590,15750,2443,281,15344,7410,6213,74,70,35676,34113,32635,35674,72,71,61,57,59,58,23,60,62,7945,73],"class_list":["post-139984","post","type-post","status-publish","format-standard","has-post-thumbnail","category-sciences-et-technologies","tag-47-tucanae","tag-astronomes","tag-astronomie","tag-astrophysique","tag-cosmos","tag-decouverte","tag-espace","tag-etoile-a-neutrons","tag-etoiles","tag-galaxie","tag-informations-sur-des-ordinateurs-portatifs","tag-nouvelles","tag-nouvelles-de-lastronomie","tag-nouvelles-de-lespace","tag-nouvelles-scientifiques","tag-pulsars","tag-rapport","tag-revues","tag-science","tag-science-and-technology","tag-sciences","tag-sciences-et-technologies","tag-suisse","tag-technologies","tag-technology","tag-telescope","tag-test"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@ch_fr\/116609699304542360","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/ch-fr\/wp-json\/wp\/v2\/posts\/139984","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/ch-fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/ch-fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ch-fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ch-fr\/wp-json\/wp\/v2\/comments?post=139984"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/ch-fr\/wp-json\/wp\/v2\/posts\/139984\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ch-fr\/wp-json\/wp\/v2\/media\/139985"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/ch-fr\/wp-json\/wp\/v2\/media?parent=139984"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/ch-fr\/wp-json\/wp\/v2\/categories?post=139984"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/ch-fr\/wp-json\/wp\/v2\/tags?post=139984"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}