{"id":2218,"date":"2022-04-28T09:57:11","date_gmt":"2022-04-28T07:57:11","guid":{"rendered":"https:\/\/stel.asu.cas.cz\/cs\/?p=2218"},"modified":"2022-04-28T10:42:29","modified_gmt":"2022-04-28T08:42:29","slug":"gama-zablesk-s-neobvyklym-optickym-dosvitem","status":"publish","type":"post","link":"https:\/\/stel.asu.cas.cz\/cs\/2022\/04\/28\/gama-zablesk-s-neobvyklym-optickym-dosvitem\/","title":{"rendered":"Gama z\u00e1blesk s neobvykl\u00fdm optick\u00fdm dosvitem"},"content":{"rendered":"\n<p>Kolektiv autor\u016f pod veden\u00edm Martina Jel\u00ednka z pracovn\u00ed skupiny <a href=\"https:\/\/stel.asu.cas.cz\/cs\/astrofyzika-vysokych-energii\/\">astrofyziky vysok\u00fdch energi\u00ed<\/a> <strong>Stel\u00e1rn\u00edho odd\u011blen\u00ed ASU<\/strong> studoval zaj\u00edmav\u00fd <strong>gama z\u00e1blesk <\/strong>zachycen\u00fd p\u0159\u00edstroji dru\u017eice INTEGRAL a n\u00e1sledn\u011b pozemn\u00ed pozorovac\u00ed s\u00edt\u00ed optick\u00fdch dalekohled\u016f. V\u011bdci se ve sv\u00e9 pr\u00e1ci zam\u011b\u0159ili na studii neobvykl\u00e9ho z\u00e1blesku s ozna\u010den\u00edm GRB 190919B, kter\u00fd byl zaznamen\u00e1n p\u0159\u00edstrojem IBAS na dru\u017eici INTEGRAL kr\u00e1tce p\u0159ed p\u016flnoc\u00ed 19. z\u00e1\u0159\u00ed 2019 na ji\u017en\u00ed obloze. Auto\u0159i po\u0159\u00edzen\u00e1 pozorov\u00e1n\u00ed detailn\u011b analyzuj\u00ed a ukazuj\u00ed, \u017ee z\u00e1blesk a n\u00e1sledn\u011b pozorovan\u00fd optick\u00fd dosvit jsou nejsp\u00ed\u0161e d\u00edlem dvou r\u016fzn\u00fdch fyzik\u00e1ln\u00edch proces\u016f.<\/p>\n\n\n\n<p>Gama z\u00e1blesky jsou bezpochyby t\u011bmi nejjasn\u011bj\u0161\u00edmi ojedin\u011bl\u00fdmi ud\u00e1lostmi, kter\u00e9 se odehr\u00e1vaj\u00ed obvykle v kosmologick\u00fdch vzd\u00e1lenostech. Uvoln\u011bn\u00e9 z\u00e1\u0159iv\u00e9 v\u00fdkony p\u0159esahuj\u00ed 10<sup>47<\/sup> W, z\u00e1blesky trvaj\u00ed v \u0161irok\u00e9m rozp\u011bt\u00ed interval\u016f od zlomk\u016f sekundy po des\u00edtek tis\u00edc sekund a jsou jedine\u010dn\u00fdm zdrojem velmi tvrd\u00e9ho gama z\u00e1\u0159en\u00ed. Z\u00e1blesk z\u00e1\u0159en\u00ed gama je \u010dasto doprov\u00e1zen dosvitem v m\u011bk\u010d\u00edch oblastech elektromagnetick\u00e9ho z\u00e1\u0159en\u00ed v\u010detn\u011b viditeln\u00e9 a infra\u010derven\u00e9 oblasti. Obecn\u011b se p\u0159edpokl\u00e1d\u00e1, \u017ee p\u016fvodcem tohoto jevu je katastrofick\u00e1 ud\u00e1lost, nap\u0159\u00edklad kolaps hmotn\u00e9 hv\u011bzdy p\u0159i za\u017eehnut\u00ed supernovy typu II nebo sr\u00e1\u017eka kompaktn\u00edch objekt\u016f \u2013 neutronov\u00fdch hv\u011bzd nebo \u010dern\u00fdch d\u011br. <\/p>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>v\u00edce o pr\u00e1ci se dozv\u00edte na str\u00e1nk\u00e1ch ASU v \u010dl\u00e1nku Michala \u0160vandy, <a rel=\"noreferrer noopener\" href=\"https:\/\/www.asu.cas.cz\/articles\/1945\/19\/na-cem-pracujeme-gama-zablesk-s-neobvyklym-optickym-dosvitem\" target=\"_blank\">Na \u010dem pracujeme: Gama z\u00e1blesk s&nbsp;neobvykl\u00fdm optick\u00fdm dosvitem<\/a>  <\/li><li>v\u011bdeck\u00fd \u010dl\u00e1nek: M. Jel\u00ednek, M. Topinka a&nbsp;kol., GRB 190919B: <strong>Rapid optical rise explained as a&nbsp;flaring activity<\/strong>, <em>Astronomy &amp; Astrophysics<\/em> v&nbsp;tisku, preprint <a rel=\"noreferrer noopener\" href=\"https:\/\/arxiv.org\/abs\/2203.11059\" target=\"_blank\">arXiv:2203.11059<\/a><\/li><li>Kontakt: <a href=\"https:\/\/stel.asu.cas.cz\/cs\/high-energy-astrophysics\/ave-members#jelinek\">Mgr. Martin Jel\u00ednek, Ph.D.<\/a><\/li><\/ul>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Kolektiv autor\u016f pod veden\u00edm Martina Jel\u00ednka z pracovn\u00ed skupiny astrofyziky vysok\u00fdch energi\u00ed Stel\u00e1rn\u00edho odd\u011blen\u00ed ASU studoval zaj\u00edmav\u00fd gama z\u00e1blesk zachycen\u00fd p\u0159\u00edstroji dru\u017eice INTEGRAL a n\u00e1sledn\u011b<\/p>\n","protected":false},"author":1,"featured_media":2221,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32,39],"tags":[],"class_list":["post-2218","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-novinky","category-vysoke-energie"],"_links":{"self":[{"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/posts\/2218","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/comments?post=2218"}],"version-history":[{"count":4,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/posts\/2218\/revisions"}],"predecessor-version":[{"id":2226,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/posts\/2218\/revisions\/2226"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/media\/2221"}],"wp:attachment":[{"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/media?parent=2218"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/categories?post=2218"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/tags?post=2218"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}