{"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\/et\/cannibal_star_eats_companion\/","title":{"rendered":"\u201eKannibali\u201d peategelane s\u00f6\u00f6b oma kaaslase \u00e4ra"},"content":{"rendered":"
\n

ESA kosmosobservatoorium Integral on teinud oma esimese avastuse \u2013 kiiresti p\u00f6\u00f6rleva t\u00e4he kohta, mis neelab oma v\u00e4iksemat naabrit.<\/p>\n<\/div>\n

See p\u00f6\u00f6rlev t\u00e4ht ei ole tavaline t\u00e4ht. Algul oli see v\u00e4hemalt kaheksa korda P\u00e4ikesest massiivsem, kuid on kokku varisenud \u00fclikiireks neutronit\u00e4heks, mille l\u00e4bim\u00f5\u00f5t on vaid 20 km. \u00dcks teelusikat\u00e4is selle ainet kaaluks umbes miljard tonni.<\/p>\n

Kuigi neutronit\u00e4ht on liiga v\u00e4ike, et seda tavalise teleskoobiga n\u00e4ha, on see n\u00e4htav r\u00f6ntgenkiirguses. Selle avastas Integral 2. detsembril 2004. aastal taeva rutiinse l\u00e4bivaatamise k\u00e4igus, kui see \u00e4kki kiirgas v\u00e4lja v\u00f5imsa r\u00f6ntgenkiirguse purske.<\/p>\n

\"Animation
Animatsioon, kus pulsar 's\u00f6\u00f6b' kaaslastaarilt ainet<\/figcaption><\/figure>\n

Integrali ja NASA kosmoselaeva \u2018Rossi X-ray Timing Explorer\u2019 m\u00f5\u00f5tmised n\u00e4itavad, et see \u201ekannibal-t\u00e4ht\u201d on \u201epulsar\u201d \u2013 kiiresti p\u00f6\u00f6rlev neutronit\u00e4ht. Tegelikult on tegemist \u00fchega k\u00f5ige kiiremini p\u00f6\u00f6rlevatest pulsaritest, mida kunagi avastatud on. Praegu p\u00f6\u00f6rleb see peadp\u00f6\u00f6ritava kiirusega \u2013 umbes 600 korda sekundis \u2013 ja kiirendab j\u00e4rk-j\u00e4rgult veelgi.<\/p>\n

Kiirendamisprotsess toimub siis, kui kaaslaselt lahtirebitud gaas p\u00f5rkab vastu pinda. See toitumisraev kuumutab gaasi temperatuurini ligi miljard kraadi, vabastades tohutuid koguseid r\u00f6ntgen- ja gammakiirgust.<\/p>\n

Vahepeal on kaaslane juba kahanenud vaid murdosani meie P\u00e4ikese suurusest, olles ehk isegi vaid 40 Jupiteri massi suurune. M\u00f5lemad t\u00e4hed asuvad \u00fcksteisele nii l\u00e4hedal, et mahuksid P\u00e4ikese raadiusesse. Et ellu j\u00e4\u00e4da, tiirleb kahanev naaber oma neutronit\u00e4he naabri \u00fcmber vaid 2,5 tunniga.<\/p>","protected":false},"excerpt":{"rendered":"

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 […]<\/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\/et\/wp-json\/wp\/v2\/posts\/971","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/comments?post=971"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/971\/revisions"}],"predecessor-version":[{"id":4764,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/971\/revisions\/4764"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/media?parent=971"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/categories?post=971"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/tags?post=971"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/panel?post=971"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/language?post=971"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/age?post=971"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/duration?post=971"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/resource_type?post=971"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/audience?post=971"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/wf_post_folders?post=971"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}