{"id":14320,"date":"2024-08-13T04:16:58","date_gmt":"2024-08-13T04:16:58","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=14320"},"modified":"2024-08-13T04:16:58","modified_gmt":"2024-08-13T04:16:58","slug":"gaia-captures-dazzling-image-of-2-8-million-stars-in-the-milky-way","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/astronomy\/gaia-captures-dazzling-image-of-2-8-million-stars-in-the-milky-way\/","title":{"rendered":"Oslniv\u00fd sn\u00edmek 2,8 milionu hv\u011bzd odhalen\u00fd mis\u00ed Gaia"},"content":{"rendered":"

Gaia zachycuje oslniv\u00fd sn\u00edmek 2,8 milionu hv\u011bzd v Ml\u00e9\u010dn\u00e9 dr\u00e1ze<\/h2>\n\n

Ohromuj\u00edc\u00ed pr\u016fzkum hv\u011bzd sondou Gaia<\/h2>\n\n

Gaia, mapova\u010d hv\u011bzd Evropsk\u00e9 kosmick\u00e9 agentury, zachytil s\u00e9rii \u00fachvatn\u00fdch sn\u00edmk\u016f galaxie Ml\u00e9\u010dn\u00e1 dr\u00e1ha, kter\u00e9 odhalily p\u0159ibli\u017en\u011b 2,8 milionu hv\u011bzd v hust\u011b os\u00eddlen\u00e9 oblasti pobl\u00ed\u017e galaktick\u00e9ho centra.<\/p>\n\n

Jasn\u00fd pohled do srdce galaxie<\/h2>\n\n

Tento konkr\u00e9tn\u00ed sn\u00edmek po\u0159\u00edzen\u00fd 7. \u00fanora 2017 zobrazuje oblast dva stupn\u011b pod galaktick\u00fdm centrem. Jeho relativn\u011b mal\u00e9 mno\u017estv\u00ed mezihv\u011bzdn\u00e9ho prachu poskytuje sond\u011b Gaia neru\u0161en\u00fd v\u00fdhled do vnit\u0159n\u00ed svatyn\u011b na\u0161\u00ed galaxie.<\/p>\n\n

S\u010d\u00edt\u00e1n\u00ed hv\u011bzd<\/h2>\n\n

Sn\u00edmek pokr\u00fdv\u00e1 0,6 \u010dtvere\u010dn\u00edch stup\u0148\u016f oblohy s odhadovanou hustotou 4,6 milionu hv\u011bzd na \u010dtvere\u010dn\u00ed stupe\u0148. To nazna\u010duje, \u017ee na sn\u00edmku by m\u011blo b\u00fdt p\u0159ibli\u017en\u011b 2,8 milionu sv\u011bteln\u00fdch bod\u016f, i kdy\u017e je je\u0161t\u011b nikdo nespo\u010d\u00edtal.<\/p>\n\n

Mise sondy Gaia: Mapov\u00e1n\u00ed Ml\u00e9\u010dn\u00e9 dr\u00e1hy<\/h2>\n\n

Sonda Gaia, kter\u00e1 byla vypu\u0161t\u011bna v roce 2013, pln\u00ed p\u011btiletou misi mapov\u00e1n\u00ed 1 miliardy hv\u011bzd nebo p\u0159ibli\u017en\u011b 1 procenta Ml\u00e9\u010dn\u00e9 dr\u00e1hy. Tento ambici\u00f3zn\u00ed projekt si klade za c\u00edl vytvo\u0159it podrobnou mapu na\u0161\u00ed galaxie a pomoci astronom\u016fm porozum\u011bt jej\u00edmu v\u00fdvoji.<\/p>\n\n

Astro spektroskopie: Studium pohyb\u016f hv\u011bzd<\/h2>\n\n

Sonda Gaia studuje pohyby jednotliv\u00fdch hv\u011bzd pomoc\u00ed techniky zvan\u00e9 astro spektroskopie. Katalogizac\u00ed a anal\u00fdzou t\u011bchto pohyb\u016f doufaj\u00ed v\u00fdzkumn\u00edci, \u017ee z\u00edskaj\u00ed poznatky o historii Ml\u00e9\u010dn\u00e9 dr\u00e1hy a p\u0159edpov\u00ed jej\u00ed budoucnost.<\/p>\n\n

Obrazy datov\u00fdch v\u00fdpis\u016f: Zachycen\u00ed hv\u011bzdn\u00fdch dav\u016f<\/h2>\n\n

I kdy\u017e se sonda Gaia obvykle zam\u011b\u0159uje na jednotliv\u00e9 hv\u011bzdy, ob\u010das naraz\u00ed na oblasti vesm\u00edru, kter\u00e9 jsou tak hust\u011b os\u00eddlen\u00e9, \u017ee je obt\u00ed\u017en\u00e9 zm\u011b\u0159it pohyb ka\u017ed\u00e9 hv\u011bzdy. V takov\u00fdch p\u0159\u00edpadech sonda Gaia ode\u0161le obraz datov\u00e9ho v\u00fdpisu cel\u00e9 oblasti. Ned\u00e1vn\u00fd sn\u00edmek hv\u011bzdn\u00fdch megastr\u00e1n je p\u0159\u00edkladem takov\u00e9ho obrazu datov\u00e9ho v\u00fdpisu.<\/p>\n\n

D\u011bdictv\u00ed sondy Gaia: P\u0159etv\u00e1\u0159en\u00ed na\u0161eho kosmick\u00e9ho pohledu<\/h2>\n\n

Navzdory sv\u00e9 relativn\u011b kr\u00e1tk\u00e9 dob\u011b ve vesm\u00edru ji\u017e sonda Gaia v\u00fdznamn\u011b p\u0159isp\u011bla k na\u0161emu ch\u00e1p\u00e1n\u00ed vesm\u00edru. Jej\u00ed prvn\u00ed katalog 1 miliardy hv\u011bzd, kter\u00fd byl zve\u0159ejn\u011bn v roce 2016, poskytl astronom\u016fm velk\u00e9 mno\u017estv\u00ed nov\u00fdch \u00fadaj\u016f. Druh\u00fd katalog by m\u011bl b\u00fdt zve\u0159ejn\u011bn v roce 2018 a dal\u0161\u00ed katalogy jsou pl\u00e1nov\u00e1ny na roky 2020 a 2022, pokud bude mise sondy Gaia prodlou\u017eena.<\/p>\n\n

Odhalov\u00e1n\u00ed kosmick\u00fdch tajemstv\u00ed z dat sondy Gaia<\/h2>\n\n

V\u00fdzkum zalo\u017een\u00fd na datech sondy Gaia ji\u017e odhaluje fascinuj\u00edc\u00ed poznatky. V\u011bdci nap\u0159\u00edklad zjistili, \u017ee hv\u011bzda jm\u00e9nem Gliese 710 projde vnit\u0159n\u00edm Oortov\u00fdm oblakem, sko\u0159\u00e1pkou ledov\u00fdch \u00falomk\u016f obklopuj\u00edc\u00ed slune\u010dn\u00ed soustavu, p\u0159ibli\u017en\u011b za 1,3 milionu let. Tato ud\u00e1lost by mohla potenci\u00e1ln\u011b spustit bombardov\u00e1n\u00ed komet do na\u0161\u00ed slune\u010dn\u00ed soustavy.<\/p>\n\n

Hv\u011bzdn\u00fd provoz v na\u0161em sousedstv\u00ed<\/h2>\n\n

Data sondy Gaia tak\u00e9 nazna\u010duj\u00ed, \u017ee v na\u0161\u00ed oblasti vesm\u00edru je mnohem v\u00edce “hv\u011bzdn\u00e9ho provozu”, ne\u017e se d\u0159\u00edve myslelo. V pr\u016fm\u011bru se 87 hv\u011bzd p\u0159ibl\u00ed\u017e\u00ed ke slunci na 6,5 sv\u011bteln\u00fdch let ka\u017ed\u00fd milion let.<\/p>\n\n

Slib sondy Gaia: Pokladnice astronomick\u00fdch dat<\/h2>\n\n

Sonda Gaia shroma\u017e\u010fuje obrovsk\u00e9 mno\u017estv\u00ed dat, kter\u00e1 by m\u011bla za p\u011bt let zaplnit 1,5 milionu CD-ROM. Tato data budou vy\u017eadovat rozs\u00e1hl\u00e9 zpracov\u00e1n\u00ed, ne\u017e bude mo\u017en\u00e9 je pln\u011b analyzovat, ale maj\u00ed potenci\u00e1l odemknout nes\u010detn\u00e9 mno\u017estv\u00ed nov\u00fdch objev\u016f o na\u0161\u00ed galaxii a vesm\u00edru za n\u00ed.<\/p>","protected":false},"excerpt":{"rendered":"

Gaia zachycuje oslniv\u00fd sn\u00edmek 2,8 milionu hv\u011bzd v Ml\u00e9\u010dn\u00e9 dr\u00e1ze Ohromuj\u00edc\u00ed pr\u016fzkum hv\u011bzd sondou Gaia Gaia, mapova\u010d hv\u011bzd Evropsk\u00e9 kosmick\u00e9 agentury, zachytil s\u00e9rii \u00fachvatn\u00fdch sn\u00edmk\u016f galaxie Ml\u00e9\u010dn\u00e1 dr\u00e1ha, kter\u00e9 odhalily…<\/p>\n","protected":false},"author":6,"featured_media":24052,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[437],"tags":[435,19238,694,564,1447,97,1232],"class_list":["post-14320","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-astronomy","tag-astronomy","tag-gaia","tag-milky-way","tag-exploration","tag-stars","tag-science","tag-space"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/14320","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=14320"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/14320\/revisions"}],"predecessor-version":[{"id":14321,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/14320\/revisions\/14321"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media\/24052"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=14320"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=14320"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=14320"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}