V. \u0160imon z ASU studoval dlouhodob\u00e1 pozorov\u00e1n\u00ed dvou kataklyzmick\u00fdch prom\u011bnn\u00fdch, kter\u00e9 v dob\u011b astronomicky velice ned\u00e1vn\u00e9 vybuchly jako klasick\u00e9 novy. Zejm\u00e9na na z\u00e1klad\u011b anal\u00fdz sv\u011bteln\u00fdch k\u0159ivek si v\u0161\u00edm\u00e1 zm\u011bn, ke kter\u00fdm v obou sledovan\u00fdch syst\u00e9mech doch\u00e1z\u00ed. Oba tyto objekty v sou\u010dasnosti aspo\u0148 ob\u010das proch\u00e1zej\u00ed st\u00e1dii vzplanut\u00ed trpasli\u010d\u00edch nov a z\u0159ejm\u011b na povrchu b\u00edl\u00e9ho trpasl\u00edka akumuluj\u00ed materi\u00e1l pro dal\u0161\u00ed v\u00fdbuch klasick\u00e9 novy.<\/p>\n\n\n\n
V\u00fdbuch klasick\u00e9 novy je pova\u017eov\u00e1n za kataklyzmickou ud\u00e1lost. V syst\u00e9mu, v n\u011bm\u017e kolem sebe ob\u00edhaj\u00ed vyvinut\u00e1 d\u00e1rcovsk\u00e1 hv\u011bzda a b\u00edl\u00fd trpasl\u00edk, se nahromad\u00ed materi\u00e1l p\u0159et\u00e9kaj\u00edc\u00ed z t\u00e9to hv\u011bzdy na b\u00edl\u00e9ho trpasl\u00edka. Tento trpasl\u00edk je obklopen akre\u010dn\u00edm diskem, do n\u011bho\u017e p\u0159it\u00e9k\u00e1 l\u00e1tka z pr\u016fvodce. Potud jsme popsali syst\u00e9m pat\u0159\u00edc\u00ed mezi kataklyzmick\u00e9 prom\u011bnn\u00e9. D\u00e1le n\u00e1sleduj\u00ed specifika, kter\u00e1 jednotliv\u00e9 typy kataklyzmick\u00fdch prom\u011bnn\u00fdch odli\u0161uj\u00ed. Jakmile se l\u00e1tky na trpasl\u00edkovi nahromad\u00ed dostatek, za\u017eehne se na n\u011bm prudk\u00e1 termonukle\u00e1rn\u00ed reakce a astronomov\u00e9 pozoruj\u00ed takzvanou klasickou novu. Z\u00e1soby l\u00e1tky se v\u0161ak \u010dasem vy\u010derpaj\u00ed, a tak doch\u00e1z\u00ed pomalu k obnov\u011b p\u016fvodn\u00edho stavu. Odborn\u00edci o\u010dek\u00e1vaj\u00ed, \u017ee v\u00fdbuchy klasick\u00e9 novy se v takov\u00e9m syst\u00e9mu opakuj\u00ed, \u010dasto na \u0161k\u00e1le tis\u00edc\u016f a\u017e des\u00edtek tis\u00edc\u016f let. V na\u0161\u00ed Galaxii vybuchlo za pozorovatelskou historii p\u0159es 500 nov, av\u0161ak jen asi 10 z nich sv\u016fj v\u00fdbuch prokazateln\u011b zopakovalo. U t\u011bch ostatn\u00edch na opakov\u00e1n\u00ed st\u00e1le \u010dek\u00e1me.<\/p>\n\n\n\n
Pokra\u010dov\u00e1n\u00ed na webu ASU<\/a><\/p>\n\n\n\n <\/p>\n","protected":false},"excerpt":{"rendered":" V. \u0160imon z ASU studoval dlouhodob\u00e1 pozorov\u00e1n\u00ed dvou kataklyzmick\u00fdch prom\u011bnn\u00fdch, kter\u00e9 v dob\u011b astronomicky velice ned\u00e1vn\u00e9 vybuchly jako klasick\u00e9 novy. Zejm\u00e9na na z\u00e1klad\u011b anal\u00fdz sv\u011bteln\u00fdch k\u0159ivek si<\/p>\n","protected":false},"author":1,"featured_media":3223,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37,32],"tags":[],"class_list":["post-3222","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-horke-hvezdy","category-novinky"],"_links":{"self":[{"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/posts\/3222","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=3222"}],"version-history":[{"count":2,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/posts\/3222\/revisions"}],"predecessor-version":[{"id":3225,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/posts\/3222\/revisions\/3225"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/media\/3223"}],"wp:attachment":[{"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/media?parent=3222"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/categories?post=3222"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/tags?post=3222"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Odkazy<\/h4>\n\n\n\n
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