{"id":97503,"date":"2025-05-25T00:24:08","date_gmt":"2025-05-25T00:24:08","guid":{"rendered":"https:\/\/ekamu.net\/?p=97503"},"modified":"2025-05-25T00:24:08","modified_gmt":"2025-05-25T00:24:08","slug":"galaksimiz-disinda-bir-yildizin-ilk-yakin-cekim-goruntusu-bu-onun-son-anlari","status":"publish","type":"post","link":"https:\/\/ekamu.net\/index.php\/2025\/05\/25\/galaksimiz-disinda-bir-yildizin-ilk-yakin-cekim-goruntusu-bu-onun-son-anlari\/","title":{"rendered":"Galaksimiz d\u0131\u015f\u0131nda bir y\u0131ld\u0131z\u0131n ilk yak\u0131n \u00e7ekim g\u00f6r\u00fcnt\u00fcs\u00fc: Bu, onun son anlar\u0131!"},"content":{"rendered":"

<\/span> Astronomlar, g\u00f6kbilim tarihinde bir ilke imza atarak Samanyolu Galaksisi<\/strong>\u2019nin d\u0131\u015f\u0131ndaki bir y\u0131ld\u0131z\u0131n yak\u0131n \u00e7ekim g\u00f6r\u00fcnt\u00fcs\u00fcn\u00fc elde etti. Bu dikkat \u00e7ekici ba\u015far\u0131, Avrupa G\u00fcney G\u00f6zlemevi<\/strong>\u2019nin Very Large Telescope Interferometer (VLTI) sayesinde m\u00fcmk\u00fcn oldu. S\u00f6z konusu y\u0131ld\u0131z ise 160.000 \u0131\u015f\u0131k y\u0131l\u0131<\/strong> uzakl\u0131kta bulunan ve k\u0131rm\u0131z\u0131 s\u00fcperdev<\/strong> kategorisinde yer alan WOH G64<\/strong>. <\/figure>\n

S\u00fcpernova \u00f6ncesi “dev” y\u0131ld\u0131z\u0131n son anlar\u0131<\/b><\/p>\n

\u015eili\u2019deki Universidad Andr\u00e9s Bello\u2019dan astrofizik\u00e7i Keiichi Ohnaka<\/strong>, elde edilen yeni g\u00f6r\u00fcnt\u00fclerin, s\u00fcpernova olmaya haz\u0131rlanan bir y\u0131ld\u0131z\u0131n etraf\u0131ndaki gaz ve toz bulutunu g\u00f6zler \u00f6n\u00fcne serdi\u011fini belirtti. “\u0130lk defa Samanyolu d\u0131\u015f\u0131ndaki bir galakside \u00f6lmekte olan bir y\u0131ld\u0131z\u0131n yak\u0131nla\u015ft\u0131r\u0131lm\u0131\u015f g\u00f6r\u00fcnt\u00fcs\u00fcn\u00fc almay\u0131 ba\u015fard\u0131k”<\/em> diyen Ohnaka, bu y\u0131ld\u0131z\u0131n \u00e7evresini saran yumurta \u015feklindeki<\/strong> bir kozan\u0131n ke\u015ffedildi\u011fini s\u00f6yledi. Bu kozan\u0131n, y\u0131ld\u0131z\u0131n patlamadan \u00f6nce madde f\u0131rlatmas\u0131yla ba\u011flant\u0131l\u0131 olabilece\u011fi d\u00fc\u015f\u00fcn\u00fcl\u00fcyor.<\/p>\n

<\/span> WOH G64, Samanyolu\u2019nun \u00e7evresinde d\u00f6nen B\u00fcy\u00fck Macellan Bulutu <\/strong>adl\u0131 k\u00fc\u00e7\u00fck galakside yer al\u0131yor. Yakla\u015f\u0131k G\u00fcne\u015f\u2019ten 2.000 kat b\u00fcy\u00fck<\/strong> olan bu dev y\u0131ld\u0131z, g\u00f6kbilimciler taraf\u0131ndan Behemot Star olarak adland\u0131r\u0131l\u0131yor. 30 y\u0131l\u0131 a\u015fk\u0131n bir s\u00fcredir g\u00f6zlemlenen bu y\u0131ld\u0131z\u0131n ilk g\u00f6r\u00fcnt\u00fcs\u00fcne ula\u015fmak i\u00e7in teknolojinin geli\u015fmesi beklendi. <\/figure>\n

S\u00fcpernova nedir?<\/b><\/p>\n

Bilmeyenler i\u00e7in, bir y\u0131ld\u0131z\u0131n ya\u015fam\u0131n\u0131n son a\u015famas\u0131nda ger\u00e7ekle\u015fen, inan\u0131lmaz derecede g\u00fc\u00e7l\u00fc bir patlama olan s\u00fcpernova, y\u0131ld\u0131z\u0131n n\u00fckleer yak\u0131t\u0131n\u0131n t\u00fckenmesi ve i\u00e7 bas\u0131nc\u0131 dengeleyen d\u0131\u015f kuvvetlerin \u00e7\u00f6kmesi sonucu ortaya \u00e7\u0131kar. S\u00fcpernovalar evrendeki en parlak olaylardan biridir; k\u0131sa bir s\u00fcre i\u00e7in G\u00fcne\u015f’in milyarlarca kat\u0131ndan daha fazla parlak olabilirler. S\u00fcpernova sonras\u0131nda y\u0131ld\u0131z\u0131n \u00e7ekirde\u011fi \u00e7\u00f6kerek geriye bir n\u00f6tron y\u0131ld\u0131z\u0131 veya k\u00fctlesine ba\u011fl\u0131 olarak bir kara delik b\u0131rak\u0131r. Y\u0131ld\u0131z\u0131n d\u0131\u015f katmanlar\u0131 uzaya sa\u00e7\u0131larak bir s\u00fcpernova kal\u0131nt\u0131s\u0131 olu\u015fturur; bu gaz ve toz bulutlar\u0131, yeni y\u0131ld\u0131z ve gezegen sistemlerinin hammaddesi haline gelir.<\/p>\n

Bu foto\u011fraf i\u00e7in y\u0131llarca beklendi<\/b><\/p>\n

Astronomlar, 2005 ve 2007 y\u0131llar\u0131nda y\u0131ld\u0131z\u0131n \u00f6zelliklerini anlamaya y\u00f6nelik ilk \u00e7al\u0131\u015fmalar\u0131 yapm\u0131\u015ft\u0131. Ancak y\u0131ld\u0131z\u0131n net bir g\u00f6r\u00fcnt\u00fcs\u00fcne ula\u015fmak, VLTI\u2019nin ikinci nesil enstr\u00fcmanlar\u0131ndan biri olan GRAVITY\u2019nin geli\u015ftirilmesiyle m\u00fcmk\u00fcn oldu. Elde edilen yeni g\u00f6r\u00fcnt\u00fcler, y\u0131ld\u0131z\u0131n son on y\u0131lda belirgin bir \u015fekilde soldu\u011funu ortaya koyuyor. Bilim insanlar\u0131 bu durumu bir y\u0131ld\u0131z\u0131n evrimini ger\u00e7ek zamanl\u0131 g\u00f6zlemleme a\u00e7\u0131s\u0131ndan “benzersiz bir f\u0131rsat<\/strong>” olarak nitelendiriyor.<\/p>\n

WOH G64 gibi k\u0131rm\u0131z\u0131 s\u00fcperdevler, ya\u015famlar\u0131n\u0131n son evrelerinde d\u0131\u015f katmanlar\u0131n\u0131 gaz ve toz \u015feklinde f\u0131rlatarak binlerce y\u0131l s\u00fcrebilecek bir s\u00fcre\u00e7 ge\u00e7iriyor. Y\u0131ld\u0131zdaki bu dramatik de\u011fi\u015fimlerin, patlayarak s\u00fcpernovaya d\u00f6n\u00fc\u015fme s\u00fcrecini h\u0131zland\u0131rabilece\u011fi d\u00fc\u015f\u00fcn\u00fcl\u00fcyor. Bilim insanlar\u0131 y\u0131ld\u0131zdan p\u00fcsk\u00fcren malzemelerin kararmadan ve y\u0131ld\u0131z\u0131n etraf\u0131ndaki toz kozas\u0131n\u0131n beklenmedik \u015feklinden de sorumlu olabilece\u011fini d\u00fc\u015f\u00fcn\u00fcyor. Toz bulutunun yumurta bi\u00e7iminde olmas\u0131 bilim insanlar\u0131n\u0131 \u015fa\u015f\u0131rtt\u0131 \u00e7\u00fcnk\u00fc \u00f6nceki g\u00f6zlemler ve bilgisayar modelleri daha farkl\u0131 bir \u015fekil \u00f6ng\u00f6r\u00fcyordu.<\/p>\n

Bu anomalinin, y\u0131ld\u0131z\u0131n bir yolda\u015f y\u0131ld\u0131za sahip olma ihtimali veya madde f\u0131rlatma s\u00fcre\u00e7lerindeki bilinmeyen bir etkiden kaynaklanabilece\u011fi d\u00fc\u015f\u00fcn\u00fcl\u00fcyor. Y\u0131ld\u0131z\u0131n giderek solmas\u0131, daha fazla yak\u0131n \u00e7ekim g\u00f6r\u00fcnt\u00fc al\u0131nmas\u0131n\u0131 zorla\u015ft\u0131rsa da, VLTI\u2019nin gelecekteki g\u00fcncellemeleri (\u00f6rne\u011fin GRAVITY+ projesi) bu engelleri a\u015fmay\u0131 vaat ediyor.<\/p>\n\n

<\/span><\/p>\n

Kaynak :\u00a0https:\/\/www.donanimhaber.com\/galaksimiz-disinda-bir-yildizin-ilk-yakin-cekim-goruntusu-alindi–184480<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Astronomlar, g\u00f6kbilim tarihinde bir ilke imza atarak Samanyolu Galaksisi\u2019nin d\u0131\u015f\u0131ndaki bir y\u0131ld\u0131z\u0131n yak\u0131n \u00e7ekim g\u00f6r\u00fcnt\u00fcs\u00fcn\u00fc elde etti. Bu dikkat \u00e7ekici ba\u015far\u0131, Avrupa G\u00fcney G\u00f6zlemevi\u2019nin Very Large Telescope Interferometer (VLTI) sayesinde m\u00fcmk\u00fcn …<\/p>\n","protected":false},"author":1,"featured_media":97504,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[1449,4945,326,1096,2858],"class_list":["post-97503","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-teknoloji","tag-goruntu","tag-supernova","tag-sure","tag-yildiz","tag-yildizin"],"_links":{"self":[{"href":"https:\/\/ekamu.net\/index.php\/wp-json\/wp\/v2\/posts\/97503","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ekamu.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ekamu.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ekamu.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ekamu.net\/index.php\/wp-json\/wp\/v2\/comments?post=97503"}],"version-history":[{"count":1,"href":"https:\/\/ekamu.net\/index.php\/wp-json\/wp\/v2\/posts\/97503\/revisions"}],"predecessor-version":[{"id":97507,"href":"https:\/\/ekamu.net\/index.php\/wp-json\/wp\/v2\/posts\/97503\/revisions\/97507"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ekamu.net\/index.php\/wp-json\/wp\/v2\/media\/97504"}],"wp:attachment":[{"href":"https:\/\/ekamu.net\/index.php\/wp-json\/wp\/v2\/media?parent=97503"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ekamu.net\/index.php\/wp-json\/wp\/v2\/categories?post=97503"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ekamu.net\/index.php\/wp-json\/wp\/v2\/tags?post=97503"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}