{"id":150514,"date":"2025-12-06T20:18:12","date_gmt":"2025-12-06T20:18:12","guid":{"rendered":"https:\/\/kamucalisani.net\/?p=150514"},"modified":"2025-12-06T20:18:12","modified_gmt":"2025-12-06T20:18:12","slug":"yildiz-patlamalarinin-ilk-anlari-bugune-kadarki-en-net-haliyle-goruntulendi","status":"publish","type":"post","link":"https:\/\/kamucalisani.net\/index.php\/2025\/12\/06\/yildiz-patlamalarinin-ilk-anlari-bugune-kadarki-en-net-haliyle-goruntulendi\/","title":{"rendered":"Y\u0131ld\u0131z patlamalar\u0131n\u0131n ilk anlar\u0131 bug\u00fcne kadarki en net h\u00e2liyle g\u00f6r\u00fcnt\u00fclendi"},"content":{"rendered":"

<\/span> Y\u0131ld\u0131z patlamalar\u0131 (novalar) s\u0131ras\u0131nda ya\u015fanan patlama son derece h\u0131zl\u0131 ger\u00e7ekle\u015fti\u011fi ve ortaya \u00e7\u0131kan parlakl\u0131k olduk\u00e7a y\u00fcksek oldu\u011fu i\u00e7in patlaman\u0131n ilk g\u00fcnlerinde neler ya\u015fand\u0131\u011f\u0131 \u015fu ana kadar net olarak g\u00f6r\u00fcnt\u00fclenememi\u015fti. Bu y\u00fczden bilim insanlar\u0131 novalara dair modellerini sonraki a\u015famalarda yap\u0131lan g\u00f6zlemlere dayand\u0131r\u0131yordu.\u00a0Ancak bu hafta yay\u0131mlanan yeni bir \u00e7al\u0131\u015fma, nova dinamiklerini anlamak i\u00e7in \u00e7ok daha somut doneler ortaya koydu. <\/figure>\n

Nature Astronomy\u2019de yay\u0131mlanan ara\u015ft\u0131rma, iki y\u0131ld\u0131z patlamas\u0131n\u0131n daha ilk g\u00fcnlerinde \u00e7ekilmi\u015f g\u00f6r\u00fcnt\u00fclerini sunarak<\/strong>, nova patlamalar\u0131n\u0131n tek y\u00f6nl\u00fc ve basit bir madde f\u0131rlat\u0131m\u0131 olmad\u0131\u011f\u0131na, aksine birden fazla ak\u0131\u015f\u0131n, \u00e7arp\u0131\u015fan gaz katmanlar\u0131n\u0131n ve beklenmedik gecikmelerin rol oynad\u0131\u011f\u0131 son derece karma\u015f\u0131k s\u00fcre\u00e7lere sahne oldu\u011funu ortaya koydu.<\/p>\n

Kaliforniya’daki\u00a0Y\u00fcksek A\u00e7\u0131sal \u00c7\u00f6z\u00fcn\u00fcrl\u00fckl\u00fc Astronomi Merkezi (CHARA)<\/strong> taraf\u0131ndan\u00a0yap\u0131lan interferometrik g\u00f6zlemler (birden fazla teleskoptan gelen \u0131\u015f\u0131\u011f\u0131 birle\u015ftirerek devasa bir teleskopmu\u015f gibi \u00e7al\u0131\u015fan g\u00f6zlem tekni\u011fi), ola\u011fan\u00fcst\u00fc \u00e7\u00f6z\u00fcn\u00fcrl\u00fckl\u00fc g\u00f6r\u00fcnt\u00fcler olu\u015fturdu. Teksas Teknik \u00dcniversitesi \u00f6nc\u00fcl\u00fc\u011f\u00fcnde y\u00fcr\u00fct\u00fclen \u00e7al\u0131\u015fman\u0131n ba\u015f\u0131ndaki isimlerden olan Elias Aydi<\/strong>, \u201cDaha \u00f6nce tek bir \u0131\u015f\u0131k noktas\u0131 olarak g\u00f6rd\u00fc\u011f\u00fcm\u00fcz bu patlamalar\u0131 art\u0131k adeta ger\u00e7ek zamanl\u0131 bir videoyu izler gibi g\u00f6zlemleyebiliyoruz. Kar\u015f\u0131m\u0131zda \u00e7ok daha karma\u015f\u0131k bir tablo var,\u201d diyerek bu d\u00f6n\u00fc\u015f\u00fcm\u00fc \u00f6zetledi.<\/p>\n

G\u00f6kbilimcilerin bu patlamalar\u0131 do\u011frudan g\u00f6r\u00fcnt\u00fcleyebilmesinin arkas\u0131nda, CHARA teleskop dizisinin \u0131\u015f\u0131k birle\u015ftirme teknolojisi bulunuyor. University of Michigan taraf\u0131ndan geli\u015ftirilen bu optik sistem, farkl\u0131 teleskoplardan gelen \u0131\u015f\u0131\u011f\u0131 tek bir g\u00f6r\u00fcnt\u00fcde birle\u015ftirerek, teorik olarak \u00fc\u00e7 futbol sahas\u0131 geni\u015fli\u011finde bir teleskopa e\u015fde\u011fer \u00e7\u00f6z\u00fcn\u00fcrl\u00fck sa\u011fl\u0131yor<\/strong>.<\/p>\n

2021 Y\u0131l\u0131nda Patlayan \u0130ki Novan\u0131n \u0130lk Anlar\u0131 Net \u015eekilde G\u00f6zlemlendi<\/b><\/p>\n

<\/span> Ara\u015ft\u0131rmac\u0131lar, 2021\u2019de patlayan iki ayr\u0131 novay\u0131 inceleyerek nova davran\u0131\u015flar\u0131n\u0131n ne kadar farkl\u0131l\u0131k g\u00f6sterebilece\u011fini do\u011frudan kar\u015f\u0131la\u015ft\u0131rma f\u0131rsat\u0131 buldu. Bu hedeflerden ilki olan Nova V1674 Herculis<\/strong>, tarihe ge\u00e7en en h\u0131zl\u0131 novalardan biri olarak biliniyor; parlakl\u0131\u011f\u0131 yaln\u0131zca birka\u00e7 g\u00fcn i\u00e7inde h\u0131zla y\u00fckselip yine ayn\u0131 h\u0131zla s\u00f6nm\u00fc\u015ft\u00fc. Ancak patlamadan sadece iki ve \u00fc\u00e7 g\u00fcn sonra elde edilen y\u00fcksek \u00e7\u00f6z\u00fcn\u00fcrl\u00fckl\u00fc g\u00f6r\u00fcnt\u00fcler, bu h\u0131zl\u0131 evrimin d\u00fc\u015f\u00fcnd\u00fc\u011f\u00fcm\u00fczden \u00e7ok daha karma\u015f\u0131k oldu\u011funu ortaya \u00e7\u0131kard\u0131. G\u00f6r\u00fcnt\u00fclerde, birbirine dik iki ayr\u0131 y\u00f6nde f\u0131rlayan gaz ak\u0131\u015flar\u0131 tespit edildi. Bu bulgu, patlaman\u0131n tek seferde ger\u00e7ekle\u015fen basit bir madde at\u0131m\u0131 olmad\u0131\u011f\u0131n\u0131<\/strong>, aksine birbirinin i\u00e7ine giren ve \u00e7arp\u0131\u015fan \u00e7oklu maddesel \u00e7\u0131k\u0131\u015flardan olu\u015ftu\u011funu g\u00f6steriyor. \u00dcstelik tam bu s\u0131rada NASA\u2019n\u0131n Fermi Gamma-Ray Uzay Teleskobu taraf\u0131ndan kaydedilen y\u00fcksek enerjili gama \u0131\u015f\u0131nlar\u0131 da, bu \u00e7arp\u0131\u015fmalar s\u0131ras\u0131nda g\u00fc\u00e7l\u00fc \u015fok dalgalar\u0131n\u0131n \u00fcretildi\u011fini do\u011frudan do\u011frulad\u0131. <\/figure>\n

\u0130ncelenen ikinci hedef olan Nova V1405 Cassiopeiae<\/strong>, ilk \u00f6rne\u011fin tam tersine son derece yava\u015f ve beklenmedik bir \u015fekilde geli\u015fti. Patlamadan sonra y\u0131ld\u0131z\u0131n d\u0131\u015f katmanlar\u0131n\u0131n hemen uzaya savrulaca\u011f\u0131 d\u00fc\u015f\u00fcn\u00fcl\u00fcrken, g\u00f6zlemler bu kabu\u011fun 50 g\u00fcnden daha uzun bir s\u00fcre boyunca yerinde kald\u0131\u011f\u0131n\u0131<\/strong> g\u00f6sterdi. Bu, nova tarihinde neredeyse hi\u00e7 g\u00f6r\u00fclmemi\u015f bir davran\u0131\u015ft\u0131. Ancak bu uzun bekleyi\u015fin ard\u0131ndan madde nihayet f\u0131rlat\u0131ld\u0131\u011f\u0131nda, ortaya \u00e7\u0131kan ani hareket yeni \u015fok dalgalar\u0131n\u0131 tetikledi ve NASA\u2019n\u0131n Fermi teleskopu tekrar y\u00fcksek enerjili gama \u0131\u015f\u0131nlar\u0131 kaydetti. Bu ke\u015fif, nova s\u00fcre\u00e7lerinin sand\u0131\u011f\u0131m\u0131zdan \u00e7ok daha \u00e7e\u015fitli oldu\u011funu<\/strong>; baz\u0131 patlamalarda maddenin uzun s\u00fcre tutulabilece\u011fini, daha sonra ise tamamen farkl\u0131 bir dinamikle d\u0131\u015far\u0131 at\u0131labilece\u011fini ortaya koyan ilk do\u011frudan kan\u0131t olarak kabul ediliyor.<\/p>\n

Ara\u015ft\u0131rman\u0131n yazarlar\u0131ndan Laura Chomiuk,<\/strong>\u00a0bu g\u00f6zlemlerin geni\u015f etkisine dikkat \u00e7ekiyor: \u201cNova patlamalar\u0131 yaln\u0131zca g\u00f6rsel bir g\u00f6steri de\u011fil; a\u015f\u0131r\u0131 fizik ko\u015fullar\u0131n\u0131n sahnelendi\u011fi laboratuvarlar. Maddenin hangi geometrilerde, hangi h\u0131zlarda ve hangi a\u015famalarda f\u0131rlat\u0131ld\u0131\u011f\u0131n\u0131 a\u00e7\u0131k\u00e7a g\u00f6rebilmek, bu patlamalar\u0131 \u00fcreten n\u00fckleer s\u00fcre\u00e7leri ve evrenin y\u00fcksek enerjili \u0131\u015f\u0131malar\u0131n\u0131 daha derinlemesine anlamam\u0131za kap\u0131 a\u00e7\u0131yor.\u201d<\/p>\n\n

Kaynak\u00a0 :\u00a0https:\/\/www.donanimhaber.com\/yildiz-patlamalari-bugune-kadarki-en-net-h-liyle-goruntulendi–199411<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Y\u0131ld\u0131z patlamalar\u0131 (novalar) s\u0131ras\u0131nda ya\u015fanan patlama son derece h\u0131zl\u0131 ger\u00e7ekle\u015fti\u011fi ve ortaya \u00e7\u0131kan parlakl\u0131k olduk\u00e7a y\u00fcksek oldu\u011fu i\u00e7in patlaman\u0131n ilk g\u00fcnlerinde neler ya\u015fand\u0131\u011f\u0131 \u015fu ana kadar net olarak g\u00f6r\u00fcnt\u00fclenememi\u015fti. Bu y\u00fczden bilim …<\/p>\n","protected":false},"author":1,"featured_media":150515,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[2872,7924,825,506,9993],"class_list":["post-150514","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-teknoloji","tag-gozlem","tag-nova","tag-patlama","tag-tek","tag-teleskop"],"_links":{"self":[{"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/posts\/150514","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/comments?post=150514"}],"version-history":[{"count":1,"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/posts\/150514\/revisions"}],"predecessor-version":[{"id":150518,"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/posts\/150514\/revisions\/150518"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/media\/150515"}],"wp:attachment":[{"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/media?parent=150514"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/categories?post=150514"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/tags?post=150514"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}