Mezi hv\u011bzdami je hned n\u011bkolik typ\u016f, kter\u00e9 zcela p\u0159irozen\u011b p\u0159edstavuj\u00ed n\u00e1dech exotiky. Mezi n\u011b pat\u0159\u00ed zcela bez pochyb i Wolfovy-Rayetovy hv\u011bzdy, vyvinut\u00e9 hmotn\u00e9 hv\u011bzdy, kter\u00e9 p\u0159i\u0161ly o sv\u00e9 vod\u00edkov\u00e9 ob\u00e1lky. Jen\u017ee nen\u00ed v\u0161echno zlato, co se t\u0159pyt\u00ed, a Olga Maryeva ze Stel\u00e1rn\u00edho odd\u011blen\u00ed ASU spole\u010dn\u011b se sv\u00fdmi kolegy ukazuje, \u017ee mnohem tuctov\u011bj\u0161\u00ed hv\u011bzdy se mohou za Wolfovy-Rayetovy maskovat. A n\u011bkter\u00e9 velmi \u00fasp\u011b\u0161n\u011b. <\/p>\n\n\n\n
Klasick\u00e9 Wolfovy-Rayetovy hv\u011bzdy p\u0159edstavuj\u00ed skupinku, kterou na Hertzsprungov\u011b-Russelov\u011b diagramu nalezneme zcela v\u00a0horn\u00edm lev\u00e9m rohu. Jsou to hv\u011bzdy velmi hork\u00e9 a\u00a0velmi sv\u00edtiv\u00e9. B\u011bhem sv\u00e9ho v\u00fdvoje p\u0159i\u0161ly o\u00a0vod\u00edkov\u00e9 ob\u00e1lky, a\u0165 ji\u017e d\u00edky ztr\u00e1t\u011b hmoty v\u011btrem nebo v\u00a0r\u00e1mci t\u011bsn\u00e9ho dvojhv\u011bzdn\u00e9ho v\u00fdvoje. Tento typ hv\u011bzd s\u00a0v kataloz\u00edch poprv\u00e9 objevil p\u0159ed v\u00edce ne\u017e 150 lety. V\u00a0sou\u010dasnosti jich je v\u00a0na\u0161\u00ed Galaxii zn\u00e1mo 669, z\u00a0nejr\u016fzn\u011bj\u0161\u00edch \u00favah ale vypl\u00fdv\u00e1, \u017ee by jich m\u011bl b\u00fdt asi dvojn\u00e1sobek. Mnoho z\u00a0nich tedy st\u00e1le \u010dek\u00e1 na sv\u00e9 objeven\u00ed.<\/p>\n\n\n\n
Pokra\u010dov\u00e1n\u00ed – web ASU<\/a><\/p>\n\n\n\n Obr\u00e1zek: Pozice hv\u011bzdy J0409+3239 na barevn\u00e9m diagramu. P\u0159ekresleny jsou modelov\u00e9 v\u00fdvojov\u00e9 stopy hv\u011bzd se slune\u010dn\u00edm chemick\u00fdm slo\u017een\u00edm. Schematicky je t\u00e9\u017e nazna\u010dena o\u010dek\u00e1van\u00e1 pozice Wolfov\u00fdch-Rayetov\u00fdch hv\u011bzd. Rozpor je zjevn\u00fd na prvn\u00ed pohled.<\/p>\n\n\n\n <\/p>\n","protected":false},"excerpt":{"rendered":" Mezi hv\u011bzdami je hned n\u011bkolik typ\u016f, kter\u00e9 zcela p\u0159irozen\u011b p\u0159edstavuj\u00ed n\u00e1dech exotiky. Mezi n\u011b pat\u0159\u00ed zcela bez pochyb i Wolfovy-Rayetovy hv\u011bzdy, vyvinut\u00e9 hmotn\u00e9 hv\u011bzdy, kter\u00e9 p\u0159i\u0161ly<\/p>\n","protected":false},"author":1,"featured_media":3063,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37,32],"tags":[],"class_list":["post-3060","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\/3060","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=3060"}],"version-history":[{"count":2,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/posts\/3060\/revisions"}],"predecessor-version":[{"id":3062,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/posts\/3060\/revisions\/3062"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/media\/3063"}],"wp:attachment":[{"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/media?parent=3060"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/categories?post=3060"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/tags?post=3060"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Dal\u0161\u00ed informace:<\/h4>\n\n\n\n
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