{"id":11647,"date":"2024-09-17T21:18:28","date_gmt":"2024-09-17T21:18:28","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=11647"},"modified":"2024-09-17T21:18:28","modified_gmt":"2024-09-17T21:18:28","slug":"unveiling-the-milky-ways-dark-side-with-the-vlba","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/astronomy\/unveiling-the-milky-ways-dark-side-with-the-vlba\/","title":{"rendered":"Nov\u00fd v\u00fdzkum vrh\u00e1 sv\u011btlo na \u201etemnou str\u00e1nku\u201c Ml\u00e9\u010dn\u00e9 dr\u00e1hy"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Nov\u00fd v\u00fdzkum vrh\u00e1 sv\u011btlo na \u201etemnou str\u00e1nku\u201c Ml\u00e9\u010dn\u00e9 dr\u00e1hy<\/h2>\n\n<h2 class=\"wp-block-heading\">Mapov\u00e1n\u00ed nezn\u00e1ma<\/h2>\n\n<p>Ml\u00e9\u010dn\u00e1 dr\u00e1ha, na\u0161e domovsk\u00e1 galaxie, m\u00e1 skrytou str\u00e1nku, kter\u00e1 byla dlouho z\u00e1hadou. A\u017e dosud nebyli v\u011bdci schopni zmapovat polovinu galaxie, kter\u00e1 je skryt\u00e1 prachem napln\u011bn\u00fdm galaktick\u00fdm centrem. Tato \u201etemn\u00e1 str\u00e1nka\u201c byla hlavn\u00ed p\u0159ek\u00e1\u017ekou v porozum\u011bn\u00ed struktury a v\u00fdvoji Ml\u00e9\u010dn\u00e9 dr\u00e1hy.<\/p>\n\n<h2 class=\"wp-block-heading\">VLBA p\u0159ich\u00e1z\u00ed na pomoc<\/h2>\n\n<p>V pr\u016flomov\u00e9 nov\u00e9 studii pou\u017eili astronomov\u00e9 syst\u00e9m deseti identick\u00fdch ant\u00e9n nazvan\u00fd Very Long Baseline Array (VLBA) k nahl\u00e9dnut\u00ed za galaktick\u00e9 centrum a do temn\u00e9 str\u00e1nky Ml\u00e9\u010dn\u00e9 dr\u00e1hy. Obrovsk\u00fd dosah VLBA mu umo\u017enil \u201evid\u011bt\u201c pomoc\u00ed r\u00e1diov\u00fdch vln, kter\u00e9 jsou mnohem v\u011bt\u0161\u00ed ne\u017e ty ve viditeln\u00e9m sv\u011btle.<\/p>\n\n<h2 class=\"wp-block-heading\">M\u011b\u0159en\u00ed vzd\u00e1lenost\u00ed pomoc\u00ed paralaxy<\/h2>\n\n<p>V\u011bdci pou\u017eili starou metodu naz\u00fdvanou trigonometrick\u00e1 paralaxa k v\u00fdpo\u010dtu vzd\u00e1lenost\u00ed k oblastem tvo\u0159\u00edc\u00edm hv\u011bzdy na druh\u00e9 stran\u011b galaxie. Paralaxa zahrnuje sledov\u00e1n\u00ed zd\u00e1nliv\u00e9ho posunu polohy nebesk\u00e9ho objektu, jak je vid\u011bt ze dvou r\u016fzn\u00fdch m\u00edst na ob\u011b\u017en\u00e9 dr\u00e1ze Zem\u011b, v odstupu n\u011bkolika m\u011bs\u00edc\u016f. M\u011b\u0159en\u00ed \u00fahlu tohoto posunu umo\u017e\u0148uje astronom\u016fm vypo\u010d\u00edtat vzd\u00e1lenost objektu pomoc\u00ed trigonometrie.<\/p>\n\n<h2 class=\"wp-block-heading\">Odhalen\u00ed oblast\u00ed tvo\u0159\u00edc\u00edch hv\u011bzdy<\/h2>\n\n<p>VLBA dalo v\u011bdc\u016fm mo\u017enost zm\u011b\u0159it velmi mal\u00fd pohyb paralaxy pozorovan\u00fd na v\u00edce ne\u017e 66 000 sv\u011bteln\u00fdch let do oblasti tvo\u0159\u00edc\u00ed hv\u011bzdy na druh\u00e9 stran\u011b galaxie. To jim umo\u017enilo zmapovat rozlo\u017een\u00ed sv\u011btl\u00e9 a tmav\u00e9 hmoty v Ml\u00e9\u010dn\u00e9 dr\u00e1ze, co\u017e poskytlo novou perspektivu na vznik a v\u00fdvoj galaxie.<\/p>\n\n<h2 class=\"wp-block-heading\">Pokra\u010duj\u00edc\u00ed \u00fasil\u00ed<\/h2>\n\n<p>Nov\u00fd v\u00fdzkum je jen sou\u010d\u00e1st\u00ed prob\u00edhaj\u00edc\u00edho \u00fasil\u00ed mnoha skupin a observato\u0159\u00ed spr\u00e1vn\u011b zmapovat celou Ml\u00e9\u010dnou dr\u00e1hu. S takov\u00fdm bezprecedentn\u00edm v\u00fdhledem doufaj\u00ed v\u011bdci, \u017ee budou schopni zodpov\u011bd\u011bt dlouholet\u00e9 ot\u00e1zky t\u00fdkaj\u00edc\u00ed se vzniku galaxie, jej\u00edho v\u00fdvoje a role temn\u00e9 hmoty.<\/p>\n\n<h2 class=\"wp-block-heading\">Odhalov\u00e1n\u00ed tajemstv\u00ed galaxie<\/h2>\n\n<p>Mapa Ml\u00e9\u010dn\u00e9 dr\u00e1hy je kl\u00ed\u010dem k pochopen\u00ed na\u0161eho m\u00edsta ve vesm\u00edru. Studiem struktury a v\u00fdvoje galaxie doufaj\u00ed astronomov\u00e9 z\u00edskat poznatky o tom, jak jsme vznikli a jak\u00e9 je na\u0161e m\u00edsto v rozlehl\u00e9m vesm\u00edru. Nov\u00fd v\u00fdzkum n\u00e1s p\u0159ivedl o krok bl\u00ed\u017ee k rozlu\u0161t\u011bn\u00ed tajemstv\u00ed na\u0161\u00ed domovsk\u00e9 galaxie.<\/p>\n\n<h2 class=\"wp-block-heading\">Dal\u0161\u00ed poznatky<\/h2>\n\n<ul class=\"wp-block-list\">\n<li>Ml\u00e9\u010dn\u00e1 dr\u00e1ha je spir\u00e1ln\u00ed galaxie, p\u0159i\u010dem\u017e na\u0161e slune\u010dn\u00ed soustava se nach\u00e1z\u00ed v jednom z jej\u00edch ramen.<\/li>\n<li>VLBA je soustava deseti identick\u00fdch ant\u00e9n, kter\u00e9 lze pou\u017e\u00edt k m\u011b\u0159en\u00ed vzd\u00e1lenosti k objekt\u016fm ve vesm\u00edru s velkou p\u0159esnost\u00ed.<\/li>\n<li>Paralaxa je metoda m\u011b\u0159en\u00ed vzd\u00e1lenost\u00ed v astronomii sledov\u00e1n\u00edm zd\u00e1nliv\u00e9ho posunu polohy objektu ze dvou r\u016fzn\u00fdch m\u00edst.<\/li>\n<li>Rozd\u011blen\u00ed sv\u011btl\u00e9 a tmav\u00e9 hmoty v Ml\u00e9\u010dn\u00e9 dr\u00e1ze poskytuje vod\u00edtka o vzniku a v\u00fdvoji galaxie.<\/li>\n<li>V\u011bdci doufaj\u00ed, \u017ee zmapov\u00e1n\u00edm cel\u00e9 Ml\u00e9\u010dn\u00e9 dr\u00e1hy budou moci zodpov\u011bd\u011bt dlouholet\u00e9 ot\u00e1zky o vzniku a v\u00fdvoji galaxie, v\u010detn\u011b toho, jak jsme mo\u017en\u00e1 vznikli.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Nov\u00fd v\u00fdzkum vrh\u00e1 sv\u011btlo na \u201etemnou str\u00e1nku\u201c Ml\u00e9\u010dn\u00e9 dr\u00e1hy Mapov\u00e1n\u00ed nezn\u00e1ma Ml\u00e9\u010dn\u00e1 dr\u00e1ha, na\u0161e domovsk\u00e1 galaxie, m\u00e1 skrytou str\u00e1nku, kter\u00e1 byla dlouho z\u00e1hadou. A\u017e dosud nebyli v\u011bdci schopni zmapovat polovinu&hellip;<\/p>\n","protected":false},"author":2,"featured_media":24374,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[437],"tags":[435,694,434,97,15733],"class_list":["post-11647","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-astronomy","tag-astronomy","tag-milky-way","tag-space-exploration","tag-science","tag-vlba"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/11647","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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=11647"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/11647\/revisions"}],"predecessor-version":[{"id":24375,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/11647\/revisions\/24375"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media\/24374"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=11647"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=11647"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=11647"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}