{"id":99005,"date":"2026-05-06T12:46:16","date_gmt":"2026-05-06T10:46:16","guid":{"rendered":"https:\/\/www.astb.se\/cassiopeiabloggen\/?p=99005"},"modified":"2026-05-06T12:46:59","modified_gmt":"2026-05-06T10:46:59","slug":"nr-18-2026","status":"publish","type":"post","link":"https:\/\/www.astb.se\/cassiopeiabloggen\/2026\/05\/06\/nr-18-2026\/","title":{"rendered":"Nr 19 2026"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Stj\u00e4rnbildning i M51 p\u00e5 n\u00e4ra h\u00e5ll <\/h2>\n\n\n\n<p>En kombo av bilder fr\u00e5n James Webb- och Hubbleteleskopen &#8211; <a href=\"https:\/\/esawebb.org\/news\/weic2608\/?lang\" title=\"\">pressmaterialet i sin helhet h\u00e4r &#8211;<\/a>  har n\u00e4rgranskat stj\u00e4rnbildningen i M51, ikoniska Malstr\u00f6msgalaxen i stj\u00e4rnbilden Jakthundarna..<\/p>\n\n\n\n<p>Videon l\u00e5ter oss zooma in i galaxen och stj\u00e4rnbildningen i en av spiralarmarna. Omr\u00e5det m\u00e4ter ungef\u00e4r 800 ljus\u00e5r tv\u00e4rs \u00f6ver, M51 ligger ca 27 miljoner ljus\u00e5r fr\u00e5n oss. De tjocka molnen av stj\u00e4rnbildande gaser, d\u00e4r stj\u00e4rnhopar skapas, visas i r\u00f6tt och brandgult som motsvarar infrar\u00f6tt ljus fr\u00e5n joniserad gas, partiklar, molekyler och kolv\u00e4ten,  &#8220;polycyclic aromatic hydrocarbons (PAHs)&#8221;.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"nv-iframe-embed\"><iframe title=\"Zoom video: M51\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/pa4S4DRShnU?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><\/figure>\n\n\n\n<p class=\"has-text-align-center\"><em>Bildk\u00e4lla: ESA\/Webb, NASA &amp; CSA, the FEAST JWST team, The Hubble Heritage Team, WIYN\/NOIRLab\/NSF\/AURA, Digitized Sky Survey 2, M. Bartmann (ESA\/Webb), A. Pedrini, A. Adamo, S. Beckwith, K. Rhode, M. Young , E. Slawik, N. Risinger, M. Zamani.<\/em><\/p>\n\n\n\n<p>En sl\u00e5ende illustration fr\u00e5n teamet i vilket ing\u00e5r Stockholmsastronomen<strong> Angela Adamo.<\/strong> Grattis till det flotta slutresultatet!<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2026\/05\/weic2608b.jpg\"><img decoding=\"async\" width=\"972\" height=\"1024\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2026\/05\/weic2608b-972x1024.jpg\" alt=\"\" class=\"wp-image-99010\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2026\/05\/weic2608b-972x1024.jpg 972w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2026\/05\/weic2608b-285x300.jpg 285w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2026\/05\/weic2608b-768x809.jpg 768w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2026\/05\/weic2608b.jpg 1280w\" sizes=\"(max-width: 972px) 100vw, 972px\" \/><\/a><\/figure>\n\n\n\n<p class=\"has-text-align-center\"><em>ESA\/Webb, NASA &amp; CSA, A. Pedrini, A. Adamo (Stockholm University) and the FEAST JWST team<\/em><\/p>\n\n\n\n<p>Hela den vetenskapliga rapporten &#8220;The emerging timescale of young star clusters regulated by cluster stellar mass&#8221; <a href=\"https:\/\/www.nature.com\/articles\/s41550-026-02857-y\" title=\"\">publiceras i dag 6 maj 2026 i<em> Nature Astronomy<\/em><\/a><em>.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Stj\u00e4rnbildning i M51 p\u00e5 n\u00e4ra h\u00e5ll En kombo av bilder fr\u00e5n James Webb- och Hubbleteleskopen &#8211; pressmaterialet i sin helhet h\u00e4r &#8211; har n\u00e4rgranskat stj\u00e4rnbildningen i M51, ikoniska Malstr\u00f6msgalaxen i stj\u00e4rnbilden Jakthundarna.. Videon l\u00e5ter oss zooma in i galaxen och stj\u00e4rnbildningen i en av spiralarmarna. Omr\u00e5det m\u00e4ter ungef\u00e4r 800 ljus\u00e5r tv\u00e4rs \u00f6ver, M51 ligger ca&hellip;&nbsp;<a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/2026\/05\/06\/nr-18-2026\/\" rel=\"bookmark\">L\u00e4s mer &raquo;<span class=\"screen-reader-text\">Nr 19 2026<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rop_custom_images_group":[],"rop_custom_messages_group":[],"rop_publish_now":"initial","rop_publish_now_accounts":[],"rop_publish_now_history":[],"rop_publish_now_status":"pending","neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[3],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/99005"}],"collection":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/comments?post=99005"}],"version-history":[{"count":10,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/99005\/revisions"}],"predecessor-version":[{"id":99016,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/99005\/revisions\/99016"}],"wp:attachment":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/media?parent=99005"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/categories?post=99005"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/tags?post=99005"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}