{"id":971,"date":"2005-09-09T08:18:00","date_gmt":"2005-09-09T06:18:00","guid":{"rendered":"https:\/\/kids.esa.int\/cannibal_star_eats_companion\/"},"modified":"2026-10-08T00:34:22","modified_gmt":"2026-10-07T22:34:22","slug":"cannibal_star_eats_companion","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/ro\/cannibal_star_eats_companion\/","title":{"rendered":"Vedeta din \u201eCannibal\u201d \u00ee\u0219i m\u0103n\u00e2nc\u0103 partenerul"},"content":{"rendered":"<div class=\"lede\">\n<p>Observatorul spa\u021bial Integral al ESA a f\u0103cut prima sa descoperire a unei stele care se rote\u0219te cu vitez\u0103 mare \u0219i care \u00ee\u0219i \u00eenghite vecina mai mic\u0103.<\/p>\n<\/div>\n<p>Steaua care se rote\u0219te nu este o stea obi\u0219nuit\u0103. Av\u00e2nd ini\u021bial o mas\u0103 de cel pu\u021bin opt ori mai mare dec\u00e2t cea a Soarelui, ea s-a pr\u0103bu\u0219it, transform\u00e2ndu-se \u00eentr-o stea de neutroni extrem de dens\u0103, cu un diametru de doar 20 km. O linguri\u021b\u0103 din materia sa ar c\u00e2nt\u0103ri aproximativ un miliard de tone.<\/p>\n<p>De\u0219i este mult prea mic\u0103 pentru a putea fi observat\u0103 cu un telescop obi\u0219nuit, steaua neutronic\u0103 poate fi observat\u0103 \u00een raze X. Aceasta a fost descoperit\u0103 de satelitul Integral \u00een timpul unei scan\u0103ri de rutin\u0103 a cerului, pe 2 decembrie 2004, c\u00e2nd a emis brusc o puternic\u0103 erup\u021bie de raze X.<\/p>\n<figure class=\"wp-block-image size-natural\" data-width=\"400\" data-credit=\"NASA\/Dana Berry\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2005\/08\/Animation_of_a_pulsar_eating_material_from_companion_star2\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2005\/08\/animation_of_a_pulsar_eating_material_from_companion_star2\/17903491-2-eng-GB\/Animation_of_a_pulsar_eating_material_from_companion_star.jpg\" alt=\"Animation of a pulsar &#x27;eating&#x27; material from companion star\"><figcaption>Anima\u021bie care ilustreaz\u0103 un pulsar 'consum\u00e2nd' materie de la steaua \u00eenso\u021bitoare<\/figcaption><\/figure>\n<p>M\u0103sur\u0103torile efectuate de Integral \u0219i de sonda spa\u021bial\u0103 Rossi X-ray Timing Explorer a NASA arat\u0103 c\u0103 steaua \u2018canibal\u0103\u2019 este un \u201epulsar\u201d \u2013 o stea de neutroni care se rote\u0219te rapid. De fapt, este unul dintre cei mai rapizi pulsari descoperi\u021bi vreodat\u0103. \u00cen prezent, aceasta se rote\u0219te cu o vitez\u0103 ame\u021bitoare \u2013 de aproximativ 600 de ori pe secund\u0103 \u2013 \u0219i devine treptat din ce \u00een ce mai rapid\u0103.<\/p>\n<p>Procesul de accelerare are loc atunci c\u00e2nd gazul smuls din steaua \u00eenso\u021bitoare se izbe\u0219te de suprafa\u021b\u0103. Aceast\u0103 \u201efrenezie alimentar\u0103\u201d \u00eel \u00eenc\u0103lze\u0219te p\u00e2n\u0103 la o temperatur\u0103 de aproape un miliard de grade, eliber\u00e2nd cantit\u0103\u021bi uria\u0219e de raze X \u0219i raze gamma.<\/p>\n<p>\u00centre timp, steaua \u00eenso\u021bitoare s-a mic\u0219orat deja la o frac\u021biune din dimensiunea Soarelui nostru, ajung\u00e2nd probabil la o mas\u0103 de doar 40 de mase jupiteriene. Cele dou\u0103 stele sunt at\u00e2t de apropiate \u00eenc\u00e2t ar \u00eenc\u0103pea \u00een raza Soarelui. Pentru a supravie\u021bui, vecina care se mic\u0219oreaz\u0103 se \u00eenv\u00e2rte \u00een jurul stelei neutronice vecine \u00een doar 2,5 ore.<\/p>","protected":false},"excerpt":{"rendered":"<p>ESA\u2019s Integral space observatory has made its first discovery of a fast-spinning star that is swallowing its smaller neighbour. The star in a spin is no ordinary star. Originally at [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2005\/08\/artist_s_impression_of_a_pulsar_eating_a_companion_star2\/17883880-2-eng-GB\/Artist_s_impression_of_a_pulsar_eating_a_companion_star.jpg","esa_banner_description":"Artist's impression of a pulsar 'eating' a companion star","esa_banner_credit":"NASA\/Dana Berry","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2005\/08\/Artist_s_impression_of_a_pulsar_eating_a_companion_star2","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[26],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-971","post","type-post","status-publish","format-standard","hentry","category-news"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/971","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/comments?post=971"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/971\/revisions"}],"predecessor-version":[{"id":4764,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/971\/revisions\/4764"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/media?parent=971"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/categories?post=971"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/tags?post=971"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/panel?post=971"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/language?post=971"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/age?post=971"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/duration?post=971"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/resource_type?post=971"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/audience?post=971"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/wf_post_folders?post=971"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}