{"id":80800,"date":"2025-11-14T15:50:23","date_gmt":"2025-11-14T15:50:23","guid":{"rendered":"https:\/\/www.europesays.com\/se\/80800\/"},"modified":"2025-11-14T15:50:23","modified_gmt":"2025-11-14T15:50:23","slug":"for-forsta-gangen-har-astronomer-observerat-de-forsta-ogonblicken-av-en-supernovas-chockvag","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/se\/80800\/","title":{"rendered":"F\u00f6r f\u00f6rsta g\u00e5ngen har astronomer observerat de f\u00f6rsta \u00f6gonblicken av en supernovas chockv\u00e5g"},"content":{"rendered":"

\t\t\"En<\/a>En konstn\u00e4rsillustration som visar en supernova och dess chockv\u00e5g. (Bildk\u00e4lla: CharlVera – Pixabay)<\/p>\n

Supernovor \u00e4r ett av de mest kraftfulla fenomenen i universum, och de f\u00f6rblir mycket mystiska. Men ett team av forskare har lyckats observera de f\u00f6rsta \u00f6gonblicken av denna h\u00e4ndelse, och resultatet \u00e4r otroligt.<\/p>\n

M\u00e5nga kosmiska h\u00e4ndelser intr\u00e4ffar i rymden<\/a> och ibland \u00f6verraskar de astronomer. Detta \u00e4r fallet med dessa forskare<\/a> som observerade de f\u00f6rsta \u00f6gonblicken av en supernova<\/a> chockv\u00e5g. <\/p>\n

D\u00e4rf\u00f6r \u00e4r det n\u00f6dv\u00e4ndigt att v\u00e4nda sig till supernovan 2024ggi, som ligger i spiralgalaxen NGC 3621<\/a>, cirka 22 miljoner ljus\u00e5r fr\u00e5n Jorden<\/a>. N\u00e4r den exploderade den 10 april 2024 beg\u00e4rde astronomen Yi Yang fr\u00e5n Tsinghua University i Peking observationstid p\u00e5 Very Large Telescope<\/a> (VLT) i Chile. <\/p>\n

Och enligt honom hade denna supernova<\/a> hade en massa p\u00e5 mellan 12 och 15 solar. Med andra ord var det en r\u00f6d superj\u00e4tte som var 500 g\u00e5nger st\u00f6rre \u00e4n v\u00e5r sol, som efter h\u00e4ndelsen blev en neutronstj\u00e4rna. <\/p>\n

Det \u00e4r allts\u00e5 med hj\u00e4lp av Very Large Telescope’s FORS2 spektrograf<\/a> som astronomerna<\/a> en metod som kallas spektropolarimetri f\u00f6r att observera denna explosion, som Lifan Wang f\u00f6rklarar: <\/p>\n

\n

”Spektropolarimetri ger information om explosionens geometri som andra typer av observationer inte kan ge eftersom vinkelskalorna \u00e4r f\u00f6r sm\u00e5.”<\/p>\n<\/blockquote>\n

Enligt de resultat som erh\u00f6lls var explosionens form tillplattad och den spred sig symmetriskt. Och f\u00f6rv\u00e5nansv\u00e4rt nog \u00e4ndrade den inte form efter att ha kolliderat med en ring av circumstell\u00e4rt material. <\/p>\n

Om detta \u00e4r en f\u00f6rsta, kommer denna uppt\u00e4ckt att g\u00f6ra det m\u00f6jligt f\u00f6r oss att b\u00e4ttre f\u00f6rst\u00e5 v\u00e5r universum<\/a> och de h\u00e4ndelser som \u00e4ger rum d\u00e4r. Och det \u00e4r inte allt, eftersom nya uppt\u00e4ckter kan g\u00f6ras under de kommande m\u00e5naderna och kan ge nya svar.<\/p>\n

\t\"En<\/a>En bild som visar platsen f\u00f6r supernovan SN 2024ggi i galaxen NGC 3621. (Bildk\u00e4lla: ESO\/Y. Yang et al.)\"Alexis<\/a>\"Ninh<\/a>Translator: Ninh Ngoc Duy<\/a> – Editorial Assistant – 655500 articles published on Notebookcheck since 2008<\/p>\n","protected":false},"excerpt":{"rendered":"En konstn\u00e4rsillustration som visar en supernova och dess chockv\u00e5g. (Bildk\u00e4lla: CharlVera – Pixabay) Supernovor \u00e4r ett av de…\n","protected":false},"author":2,"featured_media":80801,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[66],"tags":[2218,373,7083,7220,7228,7224,7233,5452,7084,7230,7227,7222,7085,7226,7232,80,78,79,34,7234,7225,7235,7229,377,7219,7221,31,33,32,30,81,84,83,82,7223,7231],"class_list":{"0":"post-80800","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-vetenskap-och-teknik","8":"tag-astrofysik","9":"tag-astronomi","10":"tag-barbar-dator","11":"tag-chockvag","12":"tag-circumstellar","13":"tag-fors2","14":"tag-galax","15":"tag-jorden","16":"tag-laptop","17":"tag-lifan-wang","18":"tag-neutronstjarna","19":"tag-ngc-3621","20":"tag-notebook","21":"tag-rod-superjatte","22":"tag-rymd","23":"tag-science","24":"tag-science-and-technology","25":"tag-scienceandtechnology","26":"tag-se","27":"tag-solen","28":"tag-spektropolarimetri","29":"tag-stjarna","30":"tag-stjarnexplosion","31":"tag-stjarnor","32":"tag-supernova","33":"tag-supernova-2024ggi","34":"tag-svenska","35":"tag-sverige","36":"tag-sweden","37":"tag-swedish","38":"tag-technology","39":"tag-teknik","40":"tag-vetenskap","41":"tag-vetenskapteknik","42":"tag-vlt","43":"tag-yi-yang"},"share_on_mastodon":{"url":"","error":"Validation failed: Text character limit of 500 exceeded"},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/posts\/80800","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/comments?post=80800"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/posts\/80800\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/media\/80801"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/media?parent=80800"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/categories?post=80800"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/tags?post=80800"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}