{"id":2662,"date":"2023-04-19T17:12:02","date_gmt":"2023-04-19T15:12:02","guid":{"rendered":"https:\/\/stel.asu.cas.cz\/cs\/?p=2662"},"modified":"2023-05-15T17:36:40","modified_gmt":"2023-05-15T15:36:40","slug":"okamzita-emise-a-casny-opticky-dosvit-dvou-vysokoenergetickych-gama-zablesku","status":"publish","type":"post","link":"https:\/\/stel.asu.cas.cz\/cs\/2023\/04\/19\/okamzita-emise-a-casny-opticky-dosvit-dvou-vysokoenergetickych-gama-zablesku\/","title":{"rendered":"Okam\u017eit\u00e1 emise a\u00a0\u010dasn\u00fd optick\u00fd dosvit dvou vysokoenergetick\u00fdch gama z\u00e1blesk\u016f"},"content":{"rendered":"\n<p>Martin Jel\u00ednek, Jan \u0160trobl a&nbsp;Ren\u00e9 Hudec z&nbsp;ASU a&nbsp;studentka Al\u017eb\u011bta Male\u0148\u00e1kov\u00e1 z&nbsp;Astronomick\u00e9ho \u00fastav Univerzity Karlovy byli sou\u010d\u00e1st\u00ed rozs\u00e1hl\u00e9ho mezin\u00e1rodn\u00edho t\u00fdmu, kter\u00fd ze zab\u00fdval velmi podrobn\u00fdm studiem dvou zaj\u00edmav\u00fdch z\u00e1blesk\u016f z\u00e1\u0159en\u00ed gama. V&nbsp;pr\u00e1ci se zab\u00fdvaj\u00ed jednak popisn\u00fdmi vlastnostmi, ale hlavn\u011b se auto\u0159i sna\u017eili ur\u010dit, co bylo jejich p\u016fvodcem a&nbsp;jak\u00e9 mechanismy hnaly jejich energetick\u00e9 v\u00fdtrysky.<\/p>\n\n\n\n<p>Z\u00e1blesky z\u00e1\u0159en\u00ed gama (Gamma-Ray Bursts, GRB) jsou n\u00e1hl\u00fdmi intenzivn\u00edmi explozemi elektromagnetick\u00e9ho z\u00e1\u0159en\u00ed s&nbsp;v\u00fdrazn\u00fdmi efekty ve vysokoenergetick\u00e9m spektru v&nbsp;kiloelektronov\u00e9 a&nbsp;megaelektronov\u00e9 oblasti. Celkov\u011b se p\u0159i t\u011bchto exploz\u00edch n\u00e1razov\u011b uvol\u0148uje energie \u0159\u00e1du 10<sup>44<\/sup> a\u017e 10<sup>47<\/sup> joul\u016f. GRB obvykle emituj\u00ed z\u00e1\u0159en\u00ed ve dvou po sob\u011b n\u00e1sleduj\u00edc\u00edch f\u00e1z\u00edch. Nejprve se objev\u00ed okam\u017eit\u00e1 emise, kter\u00e1 se projevuje p\u0159edev\u0161\u00edm fotony s&nbsp;energiemi kolem 1 megaelektronvoltu, co\u017e odpov\u00edd\u00e1 oblasti tvrd\u00e9ho rentgenov\u00e9ho a&nbsp;m\u011bkk\u00e9ho gama z\u00e1\u0159en\u00ed. Pak n\u00e1sleduje tzv. dosvit, kter\u00fd se projevuje v&nbsp;oblastech s&nbsp;men\u0161\u00edmi energiemi, nap\u0159\u00edklad i&nbsp;v optick\u00e9 oblasti.<\/p>\n\n\n\n<p>V\u00edce \/ Zdroj: <a rel=\"noreferrer noopener\" href=\"https:\/\/www.asu.cas.cz\/articles\/2108\/19\/na-cem-pracujeme-okamzita-emise-a-casny-opticky-dosvit-dvou-vysokoenergetickych-gama-zablesku\" target=\"_blank\">web ASU<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Martin Jel\u00ednek, Jan \u0160trobl a&nbsp;Ren\u00e9 Hudec z&nbsp;ASU a&nbsp;studentka Al\u017eb\u011bta Male\u0148\u00e1kov\u00e1 z&nbsp;Astronomick\u00e9ho \u00fastav Univerzity Karlovy byli sou\u010d\u00e1st\u00ed rozs\u00e1hl\u00e9ho mezin\u00e1rodn\u00edho t\u00fdmu, kter\u00fd ze zab\u00fdval velmi podrobn\u00fdm studiem<\/p>\n","protected":false},"author":1,"featured_media":2670,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32,39],"tags":[],"class_list":["post-2662","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\/2662","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=2662"}],"version-history":[{"count":2,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/posts\/2662\/revisions"}],"predecessor-version":[{"id":2671,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/posts\/2662\/revisions\/2671"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/media\/2670"}],"wp:attachment":[{"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/media?parent=2662"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/categories?post=2662"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/tags?post=2662"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}