. . . . "16366322"^^ . . . . . "2806"^^ . . "Hypernova"@cs . . "hypernovy"@cs . "vesm\u00EDrn\u00E9m t\u011Blese"@cs . . . . . . "Hypernova je teoreticky p\u0159edpokl\u00E1dan\u00FD typ supernovy vznikaj\u00EDc\u00ED kolapsem na konci \u017Eivotn\u00EDho cyklu v\u00FDjime\u010Dn\u011B velk\u00E9 hv\u011Bzdy. V hypernov\u011B se j\u00E1dro hv\u011Bzdy hrout\u00ED p\u0159\u00EDmo do \u010Dern\u00E9 d\u00EDry a z p\u00F3l\u016F jej\u00ED rotace vytrysknou dva extr\u00E9mn\u011B energetick\u00E9 proudy plazmatu dosahuj\u00EDc\u00ED tak\u0159ka rychlosti sv\u011Btla. Tyto v\u00FDtrysky emituj\u00ED intenz\u00EDvn\u00ED gama z\u00E1\u0159en\u00ED a spekuluje se o tom, \u017Ee pr\u00E1v\u011B ony zp\u016Fsobuj\u00ED tzv. gama z\u00E1blesky. Nov\u00E1 data z pozorov\u00E1n\u00ED gama z\u00E1blesk\u016F v posledn\u00EDch letech v\u00FDznamn\u011B p\u0159isp\u011Bla k na\u0161emu ch\u00E1p\u00E1n\u00ED t\u011Bchto ud\u00E1lost\u00ED.Existuj\u00ED teorie, \u017Ee energie uvoln\u011Bn\u00E1 relativn\u011B bl\u00EDzkou hypernovou by mohla b\u00FDt schopna vyhladit \u017Eivot na Zemi.V\u011Bdci z NASA a z Kansask\u00E9 univerzity v roce 2005 publikovali studii, podle kter\u00E9 masov\u00E9 vym\u00EDr\u00E1n\u00ED na Zemi na konci ordoviku p\u0159ed 450 mili\u00F3ny lety mohl vyvolat gama z\u00E1blesk. Proud paprsk\u016F gama vyd\u00E1van\u00FD hypernovou, i kdyby zas\u00E1hl Zemi na pouh\u00FDch deset sekund, m\u016F\u017Ee zni\u010Dit polovinu ochrann\u00E9 oz\u00F3nov\u00E9 vrstvy v atmosf\u00E9\u0159e.Po po\u0161kozen\u00ED oz\u00F3nov\u00E9 vrstvy je ultrafialov\u00E9 z\u00E1\u0159en\u00ED ze Slunce schopno vyhubit v\u011Bt\u0161inu \u017Eivota na pevnin\u011B a bl\u00EDzko hladiny oce\u00E1n\u016F i jezer a p\u0159eru\u0161it potravn\u00ED \u0159et\u011Bzec.Proto\u017Ee hv\u011Bzdy dostate\u010Dn\u011B velk\u00E9 na to, aby se mohly p\u0159\u00EDmo zhroutit do \u010Dern\u00E9 d\u00EDry, jsou velmi vz\u00E1cn\u00E9, hypernovy by m\u011Bly b\u00FDt tak\u00E9 vz\u00E1cn\u00E9. Odhaduje se, \u017Ee v na\u0161\u00ED Galaxii k v\u00FDbuchu hypernovy doch\u00E1z\u00ED ka\u017Ed\u00FDch 200 mili\u00F3n\u016F let. Podle sou\u010Dasn\u00FDch teori\u00ED a simulac\u00ED vznikaj\u00ED hypernovy z mas\u00EDvn\u00EDch hv\u011Bzd p\u0159inejmen\u0161\u00EDm 40\u00D7 t\u011B\u017E\u0161\u00EDch ne\u017E Slunce. Kandid\u00E1t na hypernovu, Eta Carinae, kter\u00E1 by mohla vzplanout v pr\u016Fb\u011Bhu p\u0159\u00ED\u0161t\u00EDho mili\u00F3nu let, je v dostate\u010Dn\u00E9 vzd\u00E1lenosti asi 7500 sv\u011Bteln\u00FDch let."@cs . "superz\u00E1\u0159\u00EDv\u00E1 supernova"@cs . "Hypernova"@cs . . . . . . . "obchodn\u00EDm \u0159et\u011Bzci"@cs . "hypernovu"@cs . . . . "22"^^ . . "hypernova"@cs . "Hypernova je teoreticky p\u0159edpokl\u00E1dan\u00FD typ supernovy vznikaj\u00EDc\u00ED kolapsem na konci \u017Eivotn\u00EDho cyklu v\u00FDjime\u010Dn\u011B velk\u00E9 hv\u011Bzdy. V hypernov\u011B se j\u00E1dro hv\u011Bzdy hrout\u00ED p\u0159\u00EDmo do \u010Dern\u00E9 d\u00EDry a z p\u00F3l\u016F jej\u00ED rotace vytrysknou dva extr\u00E9mn\u011B energetick\u00E9 proudy plazmatu dosahuj\u00EDc\u00ED tak\u0159ka rychlosti sv\u011Btla. Tyto v\u00FDtrysky emituj\u00ED intenz\u00EDvn\u00ED gama z\u00E1\u0159en\u00ED a spekuluje se o tom, \u017Ee pr\u00E1v\u011B ony zp\u016Fsobuj\u00ED tzv. gama z\u00E1blesky."@cs . "Hypernovy"@cs . "Hypernova"@cs . "38195"^^ . . "hypernov"@cs . . . . .