{"id":7265,"date":"2026-01-16T10:20:55","date_gmt":"2026-01-16T08:20:55","guid":{"rendered":"https:\/\/www.schooler.org.ua\/uk-uanadmasivni-strumeni-chornoyi-diri-mozhut-zupiniti-utvorennja\/"},"modified":"2026-01-16T10:20:55","modified_gmt":"2026-01-16T08:20:55","slug":"uk-uanadmasivni-strumeni-chornoyi-diri-mozhut-zupiniti-utvorennja","status":"publish","type":"post","link":"https:\/\/www.schooler.org.ua\/cs\/uk-uanadmasivni-strumeni-chornoyi-diri-mozhut-zupiniti-utvorennja\/","title":{"rendered":"Supermasivn\u00ed v\u00fdtrysky \u010dern\u00e9 d\u00edry mohou zastavit formov\u00e1n\u00ed hv\u011bzd ve spir\u00e1ln\u00edch galaxi\u00edch"},"content":{"rendered":"

Po desetilet\u00ed astronomov\u00e9 pozorovali supermasivn\u00ed \u010dern\u00e9 d\u00edry (SMBH) v centrech v\u011bt\u0161iny velk\u00fdch galaxi\u00ed. Tyto SMBH pravideln\u011b spot\u0159ebov\u00e1vaj\u00ed hmotu a vyd\u00e1vaj\u00ed siln\u00e9 proudy energie a \u010d\u00e1stic. Ned\u00e1vn\u00e1 studie ukazuje, jak tato aktivita aktivn\u011b potla\u010duje tvorbu hv\u011bzd ve spir\u00e1ln\u00edch galaxi\u00edch, jev, kter\u00fd byl d\u0159\u00edve pouze obecn\u011b ch\u00e1p\u00e1n. <\/p>\n

Oscila\u010dn\u00ed trysky: Nov\u00fd mechanismus galaktick\u00e9 regulace<\/h3>\n

V\u00fdzkumn\u00edci studuj\u00edc\u00ed galaxii VV 340A, kter\u00e1 se nach\u00e1z\u00ed 450 milion\u016f sv\u011bteln\u00fdch let daleko, zjistili, \u017ee jej\u00ed centr\u00e1ln\u00ed SMBH vys\u00edl\u00e1 jedine\u010dn\u00fd, osciluj\u00edc\u00ed paprsek. Na rozd\u00edl od b\u011b\u017en\u00fdch emis\u00ed, kter\u00e9 bu\u010f oh\u0159\u00edvaj\u00ed okoln\u00ed plyn, nebo jej stla\u010duj\u00ed, aby vyvolaly zrozen\u00ed hv\u011bzd, tento v\u00fdtrysk funguje jako \u201ekosmick\u00fd buldozer\u201c, kter\u00fd silou vytla\u010duje plyn pot\u0159ebn\u00fd pro nov\u00e9 hv\u011bzdy. V\u00fdsledky byly prezentov\u00e1ny na zimn\u00edm setk\u00e1n\u00ed Americk\u00e9 astronomick\u00e9 spole\u010dnosti. <\/p>\n

Astrofyzik Justin Kader vysv\u011btluje, \u017ee emise \u010dern\u00fdch d\u011br obvykle spadaj\u00ed do dvou kategori\u00ed: radia\u010dn\u00ed re\u017eim, kdy se hork\u00e9 akre\u010dn\u00ed disky roztahuj\u00ed, a re\u017eim \u0159\u00edzen\u00fd tryskami, kde soust\u0159ed\u011bn\u00e9 trysky stla\u010duj\u00ed oblaka plynu. VV 340A jde proti ob\u011bma t\u011bmto model\u016fm. Jeho tryska nen\u00ed rovn\u00e1, ale m\u00e1 tvar p\u00edsmene \u201eS\u201c a jeho \u00fa\u010dinky jsou radik\u00e1ln\u011b odli\u0161n\u00e9. <\/p>\n

Anom\u00e1lie VV 340A: Precessing Jet v akci<\/h3>\n

VV 340A je sou\u010d\u00e1st\u00ed slu\u010dovac\u00edho syst\u00e9mu s VV 340B, kter\u00fd tvo\u0159\u00ed v\u00fdraznou nebeskou konfiguraci. Orientace VV 340A na okraj umo\u017enila v\u00fdzkumn\u00edk\u016fm efektivn\u011b studovat jeho centr\u00e1ln\u00ed oblast. Pomoc\u00ed vesm\u00edrn\u00e9ho dalekohledu Jamese Webba objevili bezprecedentn\u00ed oblak p\u0159eh\u0159\u00e1t\u00e9ho plazmatu, kter\u00fd se rozprost\u00edr\u00e1 t\u00e9m\u011b\u0159 20 000 sv\u011bteln\u00fdch let. Dal\u0161\u00ed pozorov\u00e1n\u00ed potvrdila, \u017ee toto plazma bylo vyvr\u017eeno vysokou rychlost\u00ed, v souladu s osciluj\u00edc\u00edm paprskem SMBH. <\/p>\n

Tato oscilace nebo precese<\/strong> p\u0159ipom\u00edn\u00e1 pohyb k\u00e1\u010di nebo zahradn\u00edho zavla\u017eova\u010de. Jak se SMBH ot\u00e1\u010d\u00ed, jej\u00ed v\u00fdtrysk prol\u00e9t\u00e1 vesm\u00edrem a odtla\u010duje hv\u011bzdotvorn\u00fd plyn rychlost\u00ed asi 20 hmotnost\u00ed Slunce za rok. V\u011bdci odhaduj\u00ed, \u017ee tento proces by mohl zkr\u00e1tit dobu vzniku hv\u011bzd ve VV 340A asi o 250 milion\u016f let. <\/p>\n

Nevy\u0159e\u0161en\u00e9 ot\u00e1zky: Dvojit\u00e9 \u010dern\u00e9 d\u00edry nebo nestabilita disku?<\/h3>\n

D\u016fvod precese trysk\u00e1\u010de z\u016fst\u00e1v\u00e1 nejist\u00fd. Byly navr\u017eeny dv\u011b hlavn\u00ed mo\u017enosti: nestabilita akre\u010dn\u00edho disku<\/strong> (kde nahromad\u011bn\u00ed plynu naru\u0161uje disk) a p\u0159\u00edtomnost bin\u00e1rn\u00edho syst\u00e9mu SMBH<\/strong>. Pokud dv\u011b \u010dern\u00e9 d\u00edry ob\u00edhaj\u00ed kolem sebe, jejich gravita\u010dn\u00ed interakce m\u016f\u017ee zp\u016fsobit, \u017ee se v\u00fdtrysk rozto\u010d\u00ed jako hadice. A\u010dkoli neexistuj\u00ed \u017e\u00e1dn\u00e9 p\u0159\u00edm\u00e9 d\u016fkazy o existenci bin\u00e1rn\u00edch SMBH, z\u016fst\u00e1v\u00e1 to siln\u00e1 hypot\u00e9za. <\/p>\n

Astronom Andrew Fabian poznamen\u00e1v\u00e1, \u017ee precingov\u00e9 trysky poh\u00e1n\u011bj\u00edc\u00ed emise plyn\u016f jsou nov\u00fdm objevem. Jasn\u011bj\u0161\u00ed pozorov\u00e1n\u00ed z budouc\u00edch dalekohled\u016f, jako je Nancy Grace Roman Space Telescope, mohou pomoci vy\u0159e\u0161it tuto z\u00e1hadu. V\u011bdci ji\u017e identifikovali 32 podobn\u00fdch galaxi\u00ed pro dal\u0161\u00ed studium, proto\u017ee se sna\u017e\u00ed pochopit, jak slou\u010den\u00ed galaxi\u00ed ovliv\u0148uje tvorbu hv\u011bzd. <\/p>\n

\n

Pochopen\u00edm toho, jak SMBH reguluj\u00ed tvorbu hv\u011bzd, v\u011bdci z\u00edskaj\u00ed hlub\u0161\u00ed pochopen\u00ed v\u00fdvoje galaxi\u00ed a proces\u016f, kter\u00e9 utv\u00e1\u0159ej\u00ed vesm\u00edr. <\/p>\n<\/blockquote>\n

Tento objev zd\u016fraz\u0148uje slo\u017eit\u00e9 interakce mezi \u010dern\u00fdmi d\u00edrami a jejich hostitelsk\u00fdmi galaxiemi a posiluje my\u0161lenku, \u017ee SMBH hraj\u00ed d\u016fle\u017eitou roli p\u0159i \u0159\u00edzen\u00ed r\u016fstu galaxi\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"

Po desetilet\u00ed astronomov\u00e9 pozorovali supermasivn\u00ed \u010dern\u00e9 d\u00edry (SMBH) v centrech v\u011bt\u0161iny velk\u00fdch galaxi\u00ed. Tyto SMBH pravideln\u011b spot\u0159ebov\u00e1vaj\u00ed hmotu a vyd\u00e1vaj\u00ed siln\u00e9 proudy energie a \u010d\u00e1stic. Ned\u00e1vn\u00e1 studie ukazuje, jak tato aktivita aktivn\u011b potla\u010duje tvorbu hv\u011bzd ve spir\u00e1ln\u00edch galaxi\u00edch, jev, kter\u00fd byl d\u0159\u00edve pouze obecn\u011b ch\u00e1p\u00e1n. Oscila\u010dn\u00ed trysky: Nov\u00fd mechanismus galaktick\u00e9 regulace V\u00fdzkumn\u00edci studuj\u00edc\u00ed galaxii VV […]<\/p>\n","protected":false},"author":1,"featured_media":7264,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"tdm_status":"","tdm_grid_status":""},"categories":[1],"tags":[],"wpm_language_slugs":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/posts\/7265"}],"collection":[{"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/comments?post=7265"}],"version-history":[{"count":0,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/posts\/7265\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/media\/7264"}],"wp:attachment":[{"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/media?parent=7265"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/categories?post=7265"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/tags?post=7265"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}