{"id":17993,"date":"2024-06-10T16:01:30","date_gmt":"2024-06-10T16:01:30","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=17993"},"modified":"2024-06-10T16:01:30","modified_gmt":"2024-06-10T16:01:30","slug":"the-boomerang-nebula-the-coldest-place-in-the-universe","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/astronomy-and-astrophysics\/the-boomerang-nebula-the-coldest-place-in-the-universe\/","title":{"rendered":"Mlhovina Bumerang: Nejklidn\u011bj\u0161\u00ed m\u00edsto ve vesm\u00edru"},"content":{"rendered":"

Mlhovina Bumerang: Nejklidn\u011bj\u0161\u00ed m\u00edsto ve vesm\u00edru<\/h2>\n\n

\u00davod<\/h2>\n\n

Kdy\u017e se zimn\u00ed dny ochlazuj\u00ed, je t\u011b\u017ek\u00e9 si p\u0159edstavit m\u00edsto, kter\u00e9 by mohlo b\u00fdt je\u0161t\u011b chladn\u011bj\u0161\u00ed. Ale v prostranstv\u00ed vesm\u00edru existuje mlhovina, kter\u00e1 je tak chladn\u00e1, \u017ee je jen o vl\u00e1sek nad absolutn\u00ed nulou. Tento kosmick\u00fd div je zn\u00e1m\u00fd jako mlhovina Bumerang.<\/p>\n\n

Mlhovina Bumerang: Odkaz um\u00edraj\u00edc\u00ed hv\u011bzdy<\/h2>\n\n

Mlhovina Bumerang se nach\u00e1z\u00ed p\u0159ibli\u017en\u011b 5000 sv\u011bteln\u00fdch let od Zem\u011b. Je v\u00fdsledkem um\u00edraj\u00edc\u00ed hv\u011bzdy, kter\u00e1 se zbavila sv\u00fdch vn\u011bj\u0161\u00edch vrstev plynu, kdy\u017e se bl\u00ed\u017e\u00ed ke konci sv\u00e9ho \u017eivota. Tento plyn se rozp\u00edn\u00e1 sm\u011brem od hv\u011bzdy a p\u0159itom se ochlazuje.<\/p>\n\n

Absolutn\u00ed nula: Nejni\u017e\u0161\u00ed mo\u017en\u00e1 teplota<\/h2>\n\n

Absolutn\u00ed nula je nejni\u017e\u0161\u00ed mo\u017en\u00e1 teplota, kter\u00e9 m\u016f\u017ee cokoli dos\u00e1hnout. Je to bod, ve kter\u00e9m ustane ve\u0161ker\u00fd atomov\u00fd pohyb. Mlhovina Bumerang je jen o n\u011bco m\u00e1lo teplej\u0161\u00ed ne\u017e absolutn\u00ed nula, s teplotou minus 458 stup\u0148\u016f Fahrenheita nebo 1 stupe\u0148 Kelvina.<\/p>\n\n

M\u011b\u0159en\u00ed nejchladn\u011bj\u0161\u00edho m\u00edsta<\/h2>\n\n

V\u011bdc\u016fm se poda\u0159ilo zm\u011b\u0159it teplotu mlhoviny Bumerang pozorov\u00e1n\u00edm toho, jak absorbuje kosmick\u00e9 mikrovlnn\u00e9 pozad\u00ed. Toto z\u00e1\u0159en\u00ed je poz\u016fstatek Velk\u00e9ho t\u0159esku a je relativn\u011b tepl\u00e9 p\u0159i 2,8 Kelvinech.<\/p>\n\n

Unik\u00e1tn\u00ed vlastnosti mlhoviny Bumerang<\/h2>\n\n

Mlhovina Bumerang je unik\u00e1tn\u00ed, proto\u017ee je jedin\u00fdm zn\u00e1m\u00fdm m\u00edstem ve vesm\u00edru, kter\u00e9 je chladn\u011bj\u0161\u00ed ne\u017e absolutn\u00ed nula. Je tak\u00e9 pozoruhodn\u00e1 sv\u00fdm v\u00fdrazn\u00fdm tvarem, kter\u00fd p\u0159ipom\u00edn\u00e1 bumerang nebo mot\u00fdlka. Mlhovina je viditeln\u00e1 jen proto, \u017ee se hv\u011bzdn\u00e9 sv\u011btlo odr\u00e1\u017e\u00ed od jej\u00edch plovouc\u00edch prachov\u00fdch \u010d\u00e1stic.<\/p>\n\n

Laborato\u0159 chladn\u00fdch atom\u016f: Nov\u00e1 hranice<\/h2>\n\n

Vl\u00e1da mlhoviny Bumerang jako nejchladn\u011bj\u0161\u00edho m\u00edsta ve vesm\u00edru m\u016f\u017ee brzy skon\u010dit. V roce 2016 pl\u00e1nuje NASA vypustit laborato\u0159 chladn\u00fdch atom\u016f, kter\u00e1 bude schopna dos\u00e1hnout teplot 1\/10 miliardtiny stupn\u011b nad absolutn\u00ed nulou. To v\u011bdc\u016fm umo\u017en\u00ed prozkoumat d\u0159\u00edve nep\u0159\u00edstupn\u00fd re\u017eim extr\u00e9mn\u011b n\u00edzk\u00fdch teplot, kde doufaj\u00ed, \u017ee budou pozorovat zaj\u00edmav\u00e9 a nov\u00e9 kvantov\u00e9 jevy.<\/p>\n\n

Z\u00e1v\u011br<\/h2>\n\n

Mlhovina Bumerang je fascinuj\u00edc\u00ed kosmick\u00fd objekt, kter\u00fd upoutal pozornost v\u011bdc\u016f i astronom\u016f. Jej\u00ed extr\u00e9mn\u00ed chlad a jedine\u010dn\u00e9 vlastnosti z n\u00ed \u010din\u00ed cenn\u00fd n\u00e1stroj pro studium z\u00e1kladn\u00edch z\u00e1kon\u016f fyziky. Jak v\u011bdci pokra\u010duj\u00ed ve zkoum\u00e1n\u00ed mlhoviny Bumerang a dal\u0161\u00edch chladn\u00fdch oblast\u00ed vesm\u00edru, m\u016f\u017eeme z\u00edskat hlub\u0161\u00ed pochopen\u00ed vesm\u00edru a na\u0161eho m\u00edsta v n\u011bm.<\/p>","protected":false},"excerpt":{"rendered":"

Mlhovina Bumerang: Nejklidn\u011bj\u0161\u00ed m\u00edsto ve vesm\u00edru \u00davod Kdy\u017e se zimn\u00ed dny ochlazuj\u00ed, je t\u011b\u017ek\u00e9 si p\u0159edstavit m\u00edsto, kter\u00e9 by mohlo b\u00fdt je\u0161t\u011b chladn\u011bj\u0161\u00ed. Ale v prostranstv\u00ed vesm\u00edru existuje mlhovina, kter\u00e1…<\/p>\n","protected":false},"author":6,"featured_media":23633,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1836],"tags":[1666,435,22655,23566,23567,1232],"class_list":["post-17993","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-astronomy-and-astrophysics","tag-absolute-zero","tag-astronomy","tag-nebula","tag-boomerang-nebula","tag-coldest-place-in-the-universe","tag-space"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/17993","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=17993"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/17993\/revisions"}],"predecessor-version":[{"id":17994,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/17993\/revisions\/17994"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media\/23633"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=17993"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=17993"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=17993"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}