{"id":2156,"date":"2022-03-10T13:25:14","date_gmt":"2022-03-10T12:25:14","guid":{"rendered":"https:\/\/stel.asu.cas.cz\/cs\/?p=2156"},"modified":"2022-04-12T14:46:05","modified_gmt":"2022-04-12T12:46:05","slug":"novy-pohled-na-vyvinute-hyperobry-v-magellanovych-oblacich","status":"publish","type":"post","link":"https:\/\/stel.asu.cas.cz\/cs\/2022\/03\/10\/novy-pohled-na-vyvinute-hyperobry-v-magellanovych-oblacich\/","title":{"rendered":"Nov\u00fd pohled na vyvinut\u00e9 hyperobry v\u00a0Magellanov\u00fdch oblac\u00edch"},"content":{"rendered":"\n<p>T\u00fdm astronom\u016f veden\u00fd Michalisem Kourniotisem (Odd\u011blen\u00ed galaxi\u00ed a planet\u00e1rn\u00edch syst\u00e9m\u016f, ASU) a Michaelou Kraus (Stel\u00e1rn\u00ed odd\u011blen\u00ed, ASU) se zam\u011b\u0159il na zp\u0159esn\u011bn\u00ed \u00fadaj\u016f o osmi veleob\u0159\u00edch hv\u011bzd\u00e1ch nach\u00e1zej\u00edc\u00edch se v sousedn\u00edch galaxi\u00edch &#8211; Velk\u00e9m a Mal\u00e9m Magellanov\u011b oblaku.<\/p>\n\n\n\n<p>\u017dlut\u00ed hyperob\u0159i jsou zaj\u00edmav\u00fdm typem veleob\u0159\u00edch hv\u011bzd a jsou synonymem pro v\u00fdvojov\u00e9 st\u00e1dium ob\u0159\u00edch hv\u011bzd spektr\u00e1ln\u00edch typ\u016f F a\u017e G. Ty pro\u0161ly f\u00e1z\u00ed rud\u00e9ho veleobra a ji\u017e ztratily zna\u010dnou \u010d\u00e1st sv\u00e9 po\u010d\u00e1te\u010dn\u00ed hmotnosti. Jejich atmosf\u00e9ry jsou velmi rozs\u00e1hl\u00e9, podl\u00e9haj\u00ed turbulentn\u00edm pohyb\u016fm, pulzac\u00edm a dal\u0161\u00edm nestabilit\u00e1m, kter\u00e9 mohou v\u00e9st k rozs\u00e1hl\u00fdm v\u00fdron\u016fm l\u00e1tky do cirkumstel\u00e1rn\u00edho prost\u0159ed\u00ed. V okam\u017eiku v\u00fdronu z hlediska pozorovatele dojde k v\u00fdznamn\u00e9mu poklesu jasnosti hv\u011bzdy, nebo\u0165 se vytvo\u0159\u00ed chladn\u00e1 nepr\u016fhledn\u00e1 pseudofotosf\u00e9ra, kter\u00e1 skute\u010dnou fotosf\u00e9ru hv\u011bzdy zast\u00edn\u00ed.<\/p>\n\n\n\n<p>Auto\u0159i \u010dl\u00e1nku se zam\u011b\u0159ili na detailn\u00ed studium ob\u0159\u00edch hv\u011bzd v bl\u00edzk\u00fdch Magellanov\u00fdch oblac\u00edch. Ze zn\u00e1m\u00fdch p\u0159ehled\u016f vybrali osmici hv\u011bzd, kter\u00e9 byly historicky klasifikov\u00e1ny jako hyperob\u0159i na z\u00e1klad\u011b jejich sv\u00edtivosti a p\u0159\u00edtomnosti emise ve vod\u00edkov\u00e9 \u010d\u00e1\u0159e H\u03b1.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>podrobnosti naleznete v \u010dl\u00e1nku na webu ASU: <a rel=\"noreferrer noopener\" href=\"https:\/\/www.asu.cas.cz\/articles\/1924\/19\/na-cem-pracujeme-novy-pohled-na-vyvinute-hyperobry-v-magellanovych-oblacich\" target=\"_blank\">Na \u010dem pracujeme: Nov\u00fd pohled na vyvinut\u00e9 hyperobry v&nbsp;Magellanov\u00fdch oblac\u00edch<\/a> (M. \u0160vanda)<\/li><li>v\u011bdeck\u00fd \u010dl\u00e1nek (v angli\u010dtin\u011b): M. Kourniotis, M. Kraus, O. Maryeva a&nbsp;kol., <em>Revisiting the evolved hypergiants in the Magellanic Clouds<\/em>, Montly Notices of the Royal Astronomical Society (v&nbsp;tisku, preprint <a rel=\"noreferrer noopener\" href=\"https:\/\/arxiv.org\/abs\/2202.04667\" target=\"_blank\">arXiv:2202.04667<\/a>)<\/li><\/ul>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u00fdm astronom\u016f veden\u00fd Michalisem Kourniotisem (Odd\u011blen\u00ed galaxi\u00ed a planet\u00e1rn\u00edch syst\u00e9m\u016f, ASU) a Michaelou Kraus (Stel\u00e1rn\u00ed odd\u011blen\u00ed, ASU) se zam\u011b\u0159il na zp\u0159esn\u011bn\u00ed \u00fadaj\u016f o osmi veleob\u0159\u00edch<\/p>\n","protected":false},"author":1,"featured_media":2157,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37,32],"tags":[],"class_list":["post-2156","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\/2156","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=2156"}],"version-history":[{"count":7,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/posts\/2156\/revisions"}],"predecessor-version":[{"id":2175,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/posts\/2156\/revisions\/2175"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/media\/2157"}],"wp:attachment":[{"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/media?parent=2156"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/categories?post=2156"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/tags?post=2156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}