V srdci na\u0161\u00ed galaxie Ml\u00e9\u010dn\u00e9 dr\u00e1hy s\u00eddl\u00ed nadmasivn\u00ed \u010dern\u00e1 d\u00edra zn\u00e1m\u00e1 jako Sagittarius A*. V\u00edce ne\u017e deset let astronomov\u00e9 netrp\u011bliv\u011b o\u010dek\u00e1vaj\u00ed okam\u017eik, kdy tato nebesk\u00e1 obluda pohlt\u00ed obrovsk\u00fd plynn\u00fd oblak zn\u00e1m\u00fd jako G2.<\/p>\n\n
Plynn\u00fd oblak G2, objeven\u00fd v roce 2011, je nemilosrdn\u011b p\u0159itahov\u00e1n k Sagittarius A* jeho obrovskou gravita\u010dn\u00ed silou. Zat\u00edmco se \u0159\u00edt\u00ed vst\u0159\u00edc sv\u00e9 mo\u017en\u00e9 z\u00e1hub\u011b z\u00e1vratnou rychlost\u00ed 5 milion\u016f mil za hodinu, astronomov\u00e9 pe\u010dliv\u011b sleduj\u00ed jeho dr\u00e1hu.<\/p>\n\n
Jak se G2 bl\u00ed\u017e\u00ed ke sv\u00e9mu nejbli\u017e\u0161\u00edmu setk\u00e1n\u00ed se Sagittarius A*, mohou se odehr\u00e1t dva r\u016fzn\u00e9 sc\u00e9n\u00e1\u0159e. Plynn\u00fd oblak m\u016f\u017ee bu\u010f pokra\u010dovat po sv\u00e9 sou\u010dasn\u00e9 dr\u00e1ze a b\u00fdt vymr\u0161t\u011bn kolem \u010dern\u00e9 d\u00edry, nebo m\u016f\u017ee narazit do okoln\u00edho plynu a prachu, ztratit rychlost a spir\u00e1lovit\u011b se p\u0159ibli\u017eovat ke sv\u00e9 zk\u00e1ze.<\/p>\n\n
Pokud se G2 poda\u0159\u00ed vyhnout p\u0159\u00edm\u00e9 sr\u00e1\u017ece, m\u016f\u017ee to poskytnout cenn\u00e9 poznatky o v\u00fdvoji galaxi\u00ed. Studiem chov\u00e1n\u00ed oblaku, jak se pohybuje kolem \u010dern\u00e9 d\u00edry, doufaj\u00ed v\u011bdci, \u017ee z\u00edskaj\u00ed hlub\u0161\u00ed pochopen\u00ed historie a vzniku nadmasivn\u00ed \u010dern\u00e9 d\u00edry v na\u0161\u00ed Ml\u00e9\u010dn\u00e9 dr\u00e1ze.<\/p>\n\n
V p\u0159\u00edpad\u011b sr\u00e1\u017eky budou astronomov\u00e9 sv\u011bdky kosmick\u00e9ho divadla, kdy \u010dern\u00e1 d\u00edra pohlt\u00ed zna\u010dnou \u010d\u00e1st G2. To by nab\u00eddlo vz\u00e1cnou p\u0159\u00edle\u017eitost pozorovat stravovac\u00ed n\u00e1vyky nadmasivn\u00edch \u010dern\u00fdch d\u011br a prozkoumat procesy, kter\u00e9 utv\u00e1\u0159ej\u00ed jejich r\u016fst a vliv na jejich okol\u00ed.<\/p>\n\n
Bez ohledu na v\u00fdsledek se o\u010dek\u00e1v\u00e1, \u017ee interakce mezi Sagittarius A* a G2 bude m\u00edt dlouhodob\u00e9 d\u016fsledky. Hmota vytr\u017een\u00e1 z plynn\u00e9ho oblaku by mohla spir\u00e1lovit\u011b padat dovnit\u0159 skrze akre\u010dn\u00ed disk \u010dern\u00e9 d\u00edry a uvol\u0148ovat intenzivn\u00ed z\u00e1\u0159en\u00ed, jak se bl\u00ed\u017e\u00ed k horizontu ud\u00e1lost\u00ed. Tento proces by mohl poskytnout cenn\u00e9 poznatky o dynamice akrece \u010dern\u00e9 d\u00edry a povaze hmoty v extr\u00e9mn\u00edch prost\u0159ed\u00edch.<\/p>\n\n
Nadch\u00e1zej\u00edc\u00ed sr\u00e1\u017eka mezi Sagittarius A* a G2 zaujala p\u0159edstavivost astronom\u016f po cel\u00e9m sv\u011bt\u011b. P\u0159edstavuje jedine\u010dnou p\u0159\u00edle\u017eitost ke studiu chov\u00e1n\u00ed nadmasivn\u00edch \u010dern\u00fdch d\u011br a vz\u00e1jemn\u00e9ho p\u016fsoben\u00ed mezi nebesk\u00fdmi t\u011blesy v na\u0161\u00ed galaxii. Zat\u00edmco netrp\u011bliv\u011b o\u010dek\u00e1v\u00e1me v\u00fdsledek, stoj\u00edme na prahu odhalen\u00ed nov\u00fdch tajemstv\u00ed o z\u00e1hadn\u00fdch sil\u00e1ch, kter\u00e9 utv\u00e1\u0159ej\u00ed n\u00e1\u0161 vesm\u00edr.<\/p>","protected":false},"excerpt":{"rendered":"
Nadmasivn\u00ed \u010dern\u00e1 d\u00edra se sraz\u00ed s plynn\u00fdm oblakem V srdci na\u0161\u00ed galaxie Ml\u00e9\u010dn\u00e9 dr\u00e1hy s\u00eddl\u00ed nadmasivn\u00ed \u010dern\u00e1 d\u00edra zn\u00e1m\u00e1 jako Sagittarius A*. V\u00edce ne\u017e deset let astronomov\u00e9 netrp\u011bliv\u011b o\u010dek\u00e1vaj\u00ed okam\u017eik,…<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[437],"tags":[696,436,692,693,697,694,695,691],"class_list":["post-250","post","type-post","status-publish","format-standard","hentry","category-astronomy","tag-black-hole-accretion","tag-astrophysics","tag-gas-cloud","tag-collision","tag-cosmology","tag-milky-way","tag-sagittarius-a","tag-supermassive-black-hole"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/250","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=250"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/250\/revisions"}],"predecessor-version":[{"id":251,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/250\/revisions\/251"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=250"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=250"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=250"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}