{"id":22566,"date":"2023-12-10T16:28:48","date_gmt":"2023-12-10T16:28:48","guid":{"rendered":"https:\/\/www.africa-press.net\/madagascar\/politique\/hd-45166-letoile-la-plus-magnetique-jamais-observee"},"modified":"2023-12-10T19:50:07","modified_gmt":"2023-12-10T19:50:07","slug":"hd-45166-letoile-la-plus-magnetique-jamais-observee","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/madagascar\/toutes-les-actualites\/hd-45166-letoile-la-plus-magnetique-jamais-observee","title":{"rendered":"HD 45166, l\u2019\u00e9toile la plus magn\u00e9tique jamais observ\u00e9e"},"content":{"rendered":"<p><span style=\"color: #ff6600\"><strong>Africa-Press &#8211; Madagascar. <\/strong><\/span>Cet article est extrait du mensuel Sciences et Avenir \u2013 La Recherche n\u00b0922, date\u0301 de\u0301cembre 2023.<\/p>\n<p>Avec un champ magne\u0301tique estime\u0301 a\u0300 43.000 gauss, l\u2019e\u0301toile HD 45166 est la plus magne\u0301tique jamais observe\u0301e : des dizaines de milliers de fois plus que le Soleil !<\/p>\n<p><b>Un comportement ne cadrant pas avec les mode\u0300les classiques<\/b><\/p>\n<p>Ce champ record a e\u0301te\u0301 mesure\u0301 seulement en aou\u0302t 2023, gra\u0302ce au te\u0301lescope Canada-France-Hawaii (CFHT), dissipant au passage un myste\u0300re presque centenaire. L\u2019astre e\u0301tait en effet connu pour son comportement ne cadrant pas du tout avec les mode\u0300les classiques d\u2019e\u0301volution d\u2019e\u0301toiles. Cela s\u2019expliquerait par l\u2019intense champ magne\u0301tique qui l\u2019entoure et perturbe son rayonnement. Et ce n\u2019est pas fini.<\/p>\n<p><b>Des millions de milliards de gauss<\/b><\/p>\n<p>Cette e\u0301toile en fin de vie devrait s\u2019effondrer sur elle-me\u0302me pour former une magne\u0301toile, une e\u0301toile a\u0300 neutrons dote\u0301e d\u2019un champ magne\u0301tique atteignant des millions de milliards de gauss. De quoi donner le tournis lorsque l\u2019on songe qu\u2019un petit aimant de type magnet colle\u0301 sur son frigo atteint environ 1000 gauss.<\/p>\n<p><strong>Pour plus d&rsquo;informations et d&rsquo;analyses sur la <a href=\"https:\/\/www.africa-press.net\/madagascar\">Madagascar<\/a>, suivez <a href=\"https:\/\/www.africa-press.net\/\">Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Madagascar. Cet article est extrait du mensuel Sciences et Avenir \u2013 La Recherche n\u00b0922, date\u0301 de\u0301cembre 2023. Avec un champ magne\u0301tique estime\u0301 a\u0300 43.000 gauss, l\u2019e\u0301toile HD 45166 est la plus magne\u0301tique jamais observe\u0301e : des dizaines de milliers de fois plus que le Soleil ! Un comportement ne cadrant pas avec les [&hellip;]<\/p>\n","protected":false},"author":82,"featured_media":22565,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[36,50,49],"class_list":["post-22566","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-africa-press","tag-africa-press-madagascar","tag-madagascar"],"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>HD 45166, l\u2019\u00e9toile la plus magn\u00e9tique jamais observ\u00e9e - Madagascar<\/title>\n<meta name=\"description\" content=\"Cet article est extrait du mensuel Sciences et Avenir \u2013 La Recherche n\u00b0922, date\u0301 de\u0301cembre 2023. 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