Vesm\u00edrn\u00fd dalekohled Jamese Webba (JWST) zachytil mlhovinu Helix – posledn\u00ed akt um\u00edraj\u00edc\u00ed hv\u011bzdy vzd\u00e1len\u00e9 650 sv\u011bteln\u00fdch let – v neb\u00fdval\u00e9 jasnosti. Tyto nov\u00e9 sn\u00edmky odhaluj\u00ed nejen ikonick\u00fd tvar mlhoviny zn\u00e1m\u00fd jako \u201eOko Bo\u017e\u00ed\u201c, ale tak\u00e9 slo\u017eit\u00e9 detaily kosmick\u00e9 destrukce a potenci\u00e1ln\u00edho budouc\u00edho stvo\u0159en\u00ed v n\u00ed. <\/p>\n
Mlhovina Helix je planet\u00e1rn\u00ed mlhovina<\/strong> \u2013 nespr\u00e1vn\u00e9 pojmenov\u00e1n\u00ed, proto\u017ee tyto \u00fatvary nejsou spojeny s planetami, ale jsou to poz\u016fstatky um\u00edraj\u00edc\u00edch hv\u011bzd, jako je Slunce. Tyto hv\u011bzdy ve sv\u00fdch posledn\u00edch okam\u017eic\u00edch vyvrhnou vrstvy plynu a prachu, kter\u00e9 pak z\u016fstanou jako z\u00e1\u0159\u00edc\u00ed oblaka. Pozorov\u00e1n\u00ed JWST odhaluj\u00ed ostr\u00fd kontrast mezi tepl\u00fdm, ionizovan\u00fdm plynem v j\u00e1dru mlhoviny a star\u0161\u00edmi, chladn\u011bj\u0161\u00edmi slupkami vyvr\u017een\u00e9ho prachu, kter\u00e9 ji obklopuj\u00ed. <\/p>\n Bl\u00edzk\u00e1 infra\u010derven\u00e1 kamera dalekohledu eliminovala mlhav\u00fd vzhled, kter\u00fd jsme vid\u011bli na p\u0159edchoz\u00edch sn\u00edmc\u00edch z observato\u0159\u00ed, jako je Hubble a Spitzer. M\u00edsto toho ukazuje bohat\u011b texturovanou sc\u00e9nu sr\u00e1\u017eej\u00edc\u00edch se materi\u00e1l\u016f: proudy hork\u00e9ho plynu pror\u00e1\u017eej\u00ed prachov\u00e9 sko\u0159\u00e1pky a vytv\u00e1\u0159ej\u00ed komet\u00e1rn\u00ed struktury. Tato \u00farove\u0148 detail\u016f byla d\u0159\u00edve nedosa\u017eiteln\u00e1<\/em>, co\u017e astronom\u016fm nab\u00eddlo jasn\u011bj\u0161\u00ed obr\u00e1zek o v\u00fdvoji mlhoviny. <\/p>\n Struktura mlhoviny Helix nen\u00ed jen smrt hv\u011bzdy; jde tak\u00e9 o znovuzrozen\u00ed. Vyvr\u017een\u00fd plyn a prach slou\u017e\u00ed jako suroviny pro budouc\u00ed hv\u011bzdy a planety. Sn\u00edmky JWST ukazuj\u00ed formov\u00e1n\u00ed frakt\u00e1ln\u00edch struktur v mlhovin\u011b, kde by se jednoho dne mohly vytvo\u0159it nov\u00e9 sv\u011bty. <\/p>\n Astronomov\u00e9 byli ohromeni schopnost\u00ed dalekohledu identifikovat vzd\u00e1len\u00e9 galaxie i na detailn\u00edch portr\u00e9tech mlhoviny. Astrofyzi\u010dka Jessie Christiansen popsala, \u017ee sn\u00edmky vypadaj\u00ed jako “z\u00e1b\u011br levandule”, dokud si neuv\u011bdomila, \u017ee v z\u00e1b\u011bru jsou rozpt\u00fdleny galaxie. To zd\u016fraz\u0148uje jedine\u010dnou schopnost JWST zachytit nebesk\u00e9 objekty vp\u0159ed i vzadu s v\u00fdjime\u010dnou p\u0159esnost\u00ed. <\/p>\n Mlhovina Helix je dynamick\u00e9 prost\u0159ed\u00ed, kde se destrukce a tvo\u0159en\u00ed prol\u00ednaj\u00ed<\/strong>. Nov\u00e9 sn\u00edmky JWST poskytuj\u00ed neoceniteln\u00e9 informace o tomto procesu a ukazuj\u00ed, jak um\u00edraj\u00edc\u00ed hv\u011bzdy p\u0159isp\u00edvaj\u00ed k prob\u00edhaj\u00edc\u00edmu cyklu kosmick\u00e9 evoluce. <\/p>\n Tato pozorov\u00e1n\u00ed zd\u016fraz\u0148uj\u00ed s\u00edlu pokro\u010dil\u00fdch vesm\u00edrn\u00fdch teleskop\u016f odhalovat skryt\u00e9 slo\u017eitosti vesm\u00edru a dokazuj\u00ed, \u017ee i smrt m\u016f\u017ee zas\u00edt semena nov\u00fdch za\u010d\u00e1tk\u016f.<\/p>\n","protected":false},"excerpt":{"rendered":" Vesm\u00edrn\u00fd dalekohled Jamese Webba (JWST) zachytil mlhovinu Helix – posledn\u00ed akt um\u00edraj\u00edc\u00ed hv\u011bzdy vzd\u00e1len\u00e9 650 sv\u011bteln\u00fdch let – v neb\u00fdval\u00e9 jasnosti. Tyto nov\u00e9 sn\u00edmky odhaluj\u00ed nejen ikonick\u00fd tvar mlhoviny zn\u00e1m\u00fd jako \u201eOko Bo\u017e\u00ed\u201c, ale tak\u00e9 slo\u017eit\u00e9 detaily kosmick\u00e9 destrukce a potenci\u00e1ln\u00edho budouc\u00edho stvo\u0159en\u00ed v n\u00ed. \u201eBo\u017e\u00ed oko\u201c p\u0159edstaven\u00e9 v cel\u00e9 sv\u00e9 majest\u00e1tnosti Mlhovina Helix je […]<\/p>\n","protected":false},"author":1,"featured_media":7327,"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\/7328"}],"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=7328"}],"version-history":[{"count":0,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/posts\/7328\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/media\/7327"}],"wp:attachment":[{"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/media?parent=7328"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/categories?post=7328"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/tags?post=7328"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Od zk\u00e1zy ke stvo\u0159en\u00ed<\/h3>\n