{"id":1038,"date":"2010-05-12T08:05:00","date_gmt":"2010-05-12T06:05:00","guid":{"rendered":"https:\/\/kids.esa.int\/herschel_highlights_hidden_stars\/"},"modified":"2026-10-08T00:35:11","modified_gmt":"2026-10-07T22:35:11","slug":"herschel_highlights_hidden_stars","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sv\/herschel_highlights_hidden_stars\/","title":{"rendered":"Herschel avsl\u00f6jar dolda stj\u00e4rnor"},"content":{"rendered":"<div class=\"lede\">\n<p>F\u00f6r ett \u00e5r sedan sk\u00f6ts ESA:s rymdobservatorium Herschel upp p\u00e5 ett uppdrag f\u00f6r att utforska det infrar\u00f6da universumet. Herschel, som nu kretsar s\u00e4kert i en bana cirka 1,5 miljoner km fr\u00e5n jorden, b\u00f6rjar avsl\u00f6ja tidigare dolda detaljer om stj\u00e4rnbildning. Nya bilder visar tusentals avl\u00e4gsna galaxer d\u00e4r stj\u00e4rnor bildas i rasande takt samt vackra, stj\u00e4rnbildande moln utspridda \u00f6ver Vintergatan.<\/p>\n<\/div>\n<p>Herschel \u00e4r det st\u00f6rsta astronomiska observatoriet som n\u00e5gonsin har skickats ut i rymden, med en huvudspegel som \u00e4r fyra g\u00e5nger bredare \u00e4n hos n\u00e5got tidigare infrar\u00f6tt rymdteleskop. Detta g\u00f6r det m\u00f6jligt att studera de kalla, stj\u00e4rnbildande molnen i v\u00e5r galax mer ing\u00e5ende \u00e4n n\u00e5gonsin tidigare. Ett av dessa omr\u00e5den, k\u00e4nt som RCW 120, inneh\u00e5ller en nyf\u00f6dd stj\u00e4rna som ser ut att bli en superj\u00e4tte inom de n\u00e4rmaste hundratusentals \u00e5ren.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"2545\" data-credit=\"ESA\/Hi-GAL Consortium\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2010\/05\/Stellar_pregnancy_and_birth_in_the_Milky_Way2\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2010\/05\/stellar_pregnancy_and_birth_in_the_milky_way2\/17885989-2-eng-GB\/Stellar_pregnancy_and_birth_in_the_Milky_Way.jpg\" alt=\"Stellar pregnancy and birth in the Milky Way\"><\/figure>\n<p>Den unga stj\u00e4rnan, som redan \u00e4r 8 till 10 g\u00e5nger tyngre \u00e4n Solen, omges av ett enormt moln av gas och stoft som den kan livn\u00e4ra sig p\u00e5 och v\u00e4xa av. Forskarna f\u00f6rst\u00e5r inte hur stj\u00e4rnor kan sv\u00e4lla till 150 solmassor, s\u00e5 RCW 120 kommer att \u00f6vervakas noggrant f\u00f6r att se hur s\u00e5dana superj\u00e4ttar bildas.<\/p>\n<p>En annan ny bild fr\u00e5n Herschel visar hur material i Vintergatan samlas och bildar stj\u00e4rnor. Dessa \u2018fr\u00f6n\u2019 upptr\u00e4der f\u00f6rst inuti str\u00f6mmar av gl\u00f6dande stoft och gas och bildar kedjor av stj\u00e4rnbildningsomr\u00e5den som \u00e4r tiotals ljus\u00e5r l\u00e5nga. Utanf\u00f6r v\u00e5r Vintergata har Herschel m\u00e4tt infrar\u00f6tt ljus fr\u00e5n tusentals andra galaxer, utspridda \u00f6ver miljarder ljus\u00e5r.<\/p>\n<p>Genom att studera ljusstyrkan hos dessa sm\u00e5 ljuspunkter har man kunnat visa att stj\u00e4rnor bildades 10\u201315 g\u00e5nger snabbare f\u00f6rr \u00e4n idag. Herschel har ocks\u00e5 uppt\u00e4ckt \u00e4mnen som inte f\u00f6rekommer naturligt p\u00e5 jorden \u2013 vattenmolekyler som har splittrats av kraftfull str\u00e5lning och f\u00e5tt en elektrisk laddning.<\/p>","protected":false},"excerpt":{"rendered":"<p>One year ago, ESA\u2019s Herschel space observatory was launched on a mission to explore the infrared Universe. Now safely orbiting about 1.5 million km from Earth, Herschel is beginning to [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2010\/05\/the_galactic_bubble_rcw_1202\/17893944-2-eng-GB\/The_Galactic_bubble_RCW_120.jpg","esa_banner_description":"","esa_banner_credit":"ESA\/PACS\/SPIRE\/HOBYS Consortia","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2010\/05\/The_Galactic_bubble_RCW_1202","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[10,11,21],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1038","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-stars-and-galaxies"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/1038","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/comments?post=1038"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/1038\/revisions"}],"predecessor-version":[{"id":4811,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/1038\/revisions\/4811"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/media?parent=1038"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/categories?post=1038"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/tags?post=1038"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/panel?post=1038"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/language?post=1038"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/age?post=1038"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/duration?post=1038"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/resource_type?post=1038"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/audience?post=1038"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/wf_post_folders?post=1038"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}