{"id":24112,"date":"2020-08-07T22:46:00","date_gmt":"2020-08-07T19:46:00","guid":{"rendered":"http:\/\/life.karpat.in.ua\/?p=24112"},"modified":"2020-08-07T00:42:44","modified_gmt":"2020-08-06T21:42:44","slug":"megtalaltak-a-tejutrendszerbol-jott-furcsa-radiojelek-forrasat","status":"publish","type":"post","link":"https:\/\/life.karpat.in.ua\/?p=24112&lang=hu","title":{"rendered":"Megtal\u00e1lt\u00e1k a Tej\u00fatrendszerb\u0151l j\u00f6tt furcsa r\u00e1di\u00f3jelek forr\u00e1s\u00e1t"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Egy halott csillag fel\u0151l \u00e9rkez\u0151, \u00e9rdekes jeleket fogtak be kor\u00e1bban tud\u00f3sok. Mostanra a forr\u00e1sukat is siker\u00fclt megtal\u00e1lni.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"560\" height=\"408\" src=\"http:\/\/life.karpat.in.ua\/wp-content\/uploads\/2020\/08\/tejut.jpg\" alt=\"\" class=\"wp-image-24113\" srcset=\"https:\/\/life.karpat.in.ua\/wp-content\/uploads\/2020\/08\/tejut.jpg 560w, https:\/\/life.karpat.in.ua\/wp-content\/uploads\/2020\/08\/tejut-300x219.jpg 300w\" sizes=\"auto, (max-width: 560px) 100vw, 560px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">El\u0151sz\u00f6r lokaliz\u00e1lt\u00e1k gyors r\u00e1di\u00f3kit\u00f6r\u00e9sek (Fast Radio Burst, azaz FRB) forr\u00e1s\u00e1t a Tej\u00fatrendszerben, \u00e9s els\u0151 alkalommal siker\u00fclt kapcsolatot tal\u00e1lni k\u00e9t kozmikus jelens\u00e9g, a magnet\u00e1rok \u00e9s a r\u00e1di\u00f3kit\u00f6r\u00e9sek k\u00f6z\u00f6tt \u2013 k\u00f6z\u00f6lte Volodimir Szavcsenko, a Genfi Egyetem csillag\u00e1szati tansz\u00e9k\u00e9nek tudom\u00e1nyos munkat\u00e1rsa. Az int\u00e9zet a F\u00f6ld k\u00f6r\u00fcl 2002 \u00f3ta kering\u0151 Integral nev\u0171 m\u0171hold seg\u00edts\u00e9g\u00e9vel gy\u0171jt\u00f6tt tudom\u00e1nyos adatokat \u00e9rt\u00e9kelte ki.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c1prilis v\u00e9g\u00e9n riasztottak a vil\u00e1g csillagvizsg\u00e1l\u00f3inak megfigyel\u0151rendszerei, egy halott csillag ugyanis egyed\u00fcl\u00e1ll\u00f3an intenz\u00edv sug\u00e1rz\u00e1st bocs\u00e1tott ki nagyon r\u00f6vid ideig, n\u00e9h\u00e1ny milliszekundum erej\u00e9ig. Az Integral seg\u00edts\u00e9g\u00e9vel meg tudt\u00e1k \u00e1llap\u00edtani a rendk\u00edv\u00fcl f\u00e9nyes r\u00e1di\u00f3kit\u00f6r\u00e9sek forr\u00e1s\u00e1t: az SGR 1935 2154 jelet visel\u0151, a Kis R\u00f3ka csillagk\u00e9pben l\u00e9v\u0151 magnet\u00e1rb\u00f3l \u00e9rkeztek.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A magnet\u00e1rok rendk\u00edv\u00fcl er\u0151s m\u00e1gneses t\u00e9rrel rendelkez\u0151 neutroncsillagok, t\u00f6meg\u00fck a Nap\u00e9val megegyez\u0151, \u00e1tm\u00e9r\u0151j\u00fck viszont csup\u00e1n 20 kilom\u00e9ter k\u00f6r\u00fcli. Amikor akt\u00edvv\u00e1 v\u00e1lnak, kevesebb mint egy m\u00e1sodperc alatt nagy energi\u00e1j\u00fa sug\u00e1rz\u00e1st bocs\u00e1tanak ki, mely t\u00f6bb milli\u00e1rdszor f\u00e9nyesebb, mint a Nap.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ezekr\u0151l a gyors r\u00e1di\u00f3kit\u00f6r\u00e9sekr\u0151l kev\u00e9s inform\u00e1ci\u00f3val rendelkeznek a tud\u00f3sok. 2007-ben fedezt\u00e9k fel \u0151ket, eddig azonban m\u00e1s m\u0171holdak seg\u00edts\u00e9g\u00e9vel nem siker\u00fclt azonos\u00edtani eredet\u00fcket a Kis R\u00f3ka csillagk\u00e9pen bel\u00fcl. Az Integralnak \u00e9s Ibis nev\u0171 k\u00e9pstabiliz\u00e1tor\u00e1nak k\u00f6sz\u00f6nhet\u0151en azonban el\u0151sz\u00f6r siker\u00fclt forr\u00e1sk\u00e9nt az SGR 1935 2154 magnet\u00e1rt azonos\u00edtani. \u201eEz val\u00f3ban \u00fatt\u00f6r\u0151 felfedez\u00e9s. F\u00e9nyt der\u00edt k\u00e9t titokzatos jelens\u00e9g, a magnet\u00e1rok \u00e9s a gyors r\u00e1di\u00f3kit\u00f6r\u00e9sek eredet\u00e9re. Eddig m\u00e9g sohasem siker\u00fclt lokaliz\u00e1lni a Tej\u00fatrendszerben egy FRB forr\u00e1s\u00e1t\u201d \u2013 mondta el Mereghetti.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Szavcsenko \u00e9s a mil\u00e1n\u00f3i INAF IASF asztrofizikai int\u00e9zetben dolgoz\u00f3 Sandro Mereghetti vezet\u00e9s\u00e9vel a csillag\u00e1szok az Astrophysical Journal Letters c\u00edm\u0171 tudom\u00e1nyos lapban sz\u00e1moltak be eredm\u00e9nyeikr\u0151l.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Brit csillag\u00e1szok nemr\u00e9g 157 naponta ism\u00e9tl\u0151d\u0151 r\u00e1di\u00f3jeleket fogtak be, de ennek a forr\u00e1s\u00e1t m\u00e9g nem tal\u00e1lt\u00e1k meg.<\/p>\n\n\n\n<p class=\"has-text-align-right wp-block-paragraph\"><strong><a href=\"https:\/\/m.hvg.hu\/tudomany\/20200729_gyors_radiokitores_frb_tejutrendszer#rss\" target=\"_blank\" rel=\"noreferrer noopener\">(hvg.hu)<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Egy halott csillag fel\u0151l \u00e9rkez\u0151, \u00e9rdekes jeleket fogtak be kor\u00e1bban tud\u00f3sok. Mostanra a forr\u00e1sukat is siker\u00fclt megtal\u00e1lni.<\/p>\n","protected":false},"author":12,"featured_media":24114,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41,596,23,598,39],"tags":[6101,15146,15145,15144],"class_list":["post-24112","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cikkek","category-erdekes","category-fotok","category-tudomany","category-vilag","tag-csillagaszat","tag-magnetarok","tag-radiojelek","tag-tejutrendszer"],"_links":{"self":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/posts\/24112","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=24112"}],"version-history":[{"count":0,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/posts\/24112\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/media\/24114"}],"wp:attachment":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=24112"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24112"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}