{"id":33096,"date":"2025-08-06T10:59:30","date_gmt":"2025-08-06T07:59:30","guid":{"rendered":"https:\/\/kibrisayna.com\/index.php\/2025\/08\/06\/bilim-tarihinde-bir-ilk-evrenin-ilk-molekulleri-yeniden-olusturuldu-son-dakika-teknoloji-haberleri\/"},"modified":"2025-08-06T10:59:30","modified_gmt":"2025-08-06T07:59:30","slug":"bilim-tarihinde-bir-ilk-evrenin-ilk-molekulleri-yeniden-olusturuldu-son-dakika-teknoloji-haberleri","status":"publish","type":"post","link":"https:\/\/kibrisayna.com\/index.php\/2025\/08\/06\/bilim-tarihinde-bir-ilk-evrenin-ilk-molekulleri-yeniden-olusturuldu-son-dakika-teknoloji-haberleri\/","title":{"rendered":"Bilim tarihinde bir ilk: Evrenin ilk molek\u00fclleri yeniden olu\u015fturuldu – Son Dakika Teknoloji Haberleri"},"content":{"rendered":"


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Bilim<\/a> insanlar\u0131n\u0131n elde etti\u011fi yeni bulgulara g\u00f6re y\u0131ld\u0131zlar\u0131n k\u00f6kenine ili\u015fkin mevcut anlay\u0131\u015f alt\u00fcst oldu.<\/p>\n

“Astronomy and Astrophysics” dergisinde yay\u0131mlanan \u00e7al\u0131\u015fmalar, erken evrende G\u00fcne\u015f<\/a>‘in kimyas\u0131n\u0131n yeniden de\u011ferlendirilmesini gerektiriyor.<\/p>\n

B\u00fcy\u00fck Patlama’dan hemen sonra, 13,8 milyar y\u0131l \u00f6nce, evren son derece y\u00fcksek s\u0131cakl\u0131klara ula\u015fm\u0131\u015ft\u0131. Birka\u00e7 saniye sonra, s\u0131cakl\u0131k ilk elementler olan hidrojen ve helyumun olu\u015fmas\u0131na yetecek kadar d\u00fc\u015ft\u00fc. Y\u00fcz binlerce y\u0131l sonra ise evren, bu elementlerin atomlar\u0131n\u0131n \u00e7e\u015fitli konfig\u00fcrasyonlardaki elektronlarla birle\u015ferek molek\u00fcller olu\u015fturmas\u0131na yetecek kadar so\u011fumu\u015ftu.<\/p>\n

Ara\u015ft\u0131rmac\u0131lara g\u00f6re, olu\u015fturulan ilk molek\u00fcl helyum hidrit iyonuydu. Bu iyon, g\u00fcn\u00fcm\u00fczde evrendeki en bol bulunan molek\u00fcl olan molek\u00fcler hidrojenin olu\u015fumu i\u00e7in gerekli.<\/p>\n

\u00c7ARPI\u015eIP, ISI SALMALARI GEREK\u0130YOR<\/strong><\/p>\n

Hem helyum hidrit iyonlar\u0131 hem de molek\u00fcler hidrojen, milyonlarca y\u0131l sonra ilk y\u0131ld\u0131zlar\u0131n geli\u015fimi i\u00e7in kritik \u00f6neme sahipti. Bir protoy\u0131ld\u0131zda, y\u0131ld\u0131zlar\u0131n kendi enerjilerini \u00fcrettikleri f\u00fczyon s\u00fcrecinin ba\u015flamas\u0131 i\u00e7in atomlar\u0131n ve molek\u00fcllerin birbirleriyle \u00e7arp\u0131\u015f\u0131p \u0131s\u0131 salmalar\u0131 gerekir. Bu s\u00fcre\u00e7 10 bin santigrat derecenin alt\u0131nda verimli de\u011fil. Ancak helyum hidrit iyonlar\u0131, d\u00fc\u015f\u00fck s\u0131cakl\u0131klarda bile bu s\u00fcreci h\u0131zland\u0131rmada son derece etkili ve bu da onlar\u0131 erken evrende y\u0131ld\u0131z olu\u015fumunda muhtemelen \u00f6nemli bir fakt\u00f6r haline getiriyor. Bilim insanlar\u0131, bu iyonlar\u0131n miktar\u0131n\u0131n erken astrogenezin h\u0131z\u0131n\u0131 ve verimlili\u011fini \u00f6nemli \u00f6l\u00e7\u00fcde etkilemi\u015f olabilece\u011fini s\u00f6yledi.<\/p>\n

Yeni \u00e7al\u0131\u015fmada ara\u015ft\u0131rmac\u0131lar, iyonlar\u0131 a\u011f\u0131r hidrojenle \u00e7arp\u0131\u015ft\u0131rmadan \u00f6nce 60 saniyeye kadar eksi 267 dereceye kadar so\u011futarak erken helyum hidrit reaksiyonlar\u0131n\u0131 yeniden \u00fcretti. Y\u0131ld\u0131zlarda f\u00fczyonu tetikleyen \u00e7arp\u0131\u015fmalara benzeyen bu \u00e7arp\u0131\u015fmalar\u0131n, par\u00e7ac\u0131klar\u0131n s\u0131cakl\u0131\u011f\u0131ndan nas\u0131l etkilendi\u011fini incelediler.<\/p>\n

Bu par\u00e7ac\u0131klar\u0131n reaksiyon h\u0131zlar\u0131n\u0131n d\u00fc\u015f\u00fck s\u0131cakl\u0131klarda azalmad\u0131\u011f\u0131n\u0131 buldular ki bu da eski teorilerle \u00e7eli\u015fiyor.<\/p>\n

D\u00dc\u015e\u00dcN\u00dcLENDEN \u00c7OK DAHA \u00d6NEML\u0130 ROL OYNAMI\u015e<\/strong><\/p>\n

Almanya’daki Max Planck N\u00fckleer Fizik Enstit\u00fcs\u00fc’nde n\u00fckleer fizik\u00e7i ve \u00e7al\u0131\u015fman\u0131n ortak yazar\u0131 Holger Krekel, “\u00d6nceki teoriler, d\u00fc\u015f\u00fck s\u0131cakl\u0131klarda reaksiyon olas\u0131l\u0131\u011f\u0131nda \u00f6nemli bir azalma \u00f6ng\u00f6rm\u00fc\u015ft\u00fc, ancak bunu ne deneysel olarak ne de yeni teorik hesaplamalarla do\u011frulayamad\u0131k” dedi.<\/p>\n

Helyum hidrit iyonlar\u0131n\u0131n davran\u0131\u015f\u0131 hakk\u0131ndaki bu ke\u015ffin, y\u0131ld\u0131zlar\u0131n erken evrende nas\u0131l olu\u015ftu\u011funa dair mevcut anlay\u0131\u015f\u0131 sorgulad\u0131\u011f\u0131n\u0131 s\u00f6yleyen Krekel, “Bu iyonlar\u0131n di\u011fer atomlarla reaksiyonlar\u0131, erken evrenin kimyas\u0131nda daha \u00f6nce d\u00fc\u015f\u00fcn\u00fclenden \u00e7ok daha \u00f6nemli bir rol oynam\u0131\u015f gibi g\u00f6r\u00fcn\u00fcyor” sonucuna vard\u0131.<\/p>\n<\/div>\n


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<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Bilim insanlar\u0131n\u0131n elde etti\u011fi yeni bulgulara g\u00f6re y\u0131ld\u0131zlar\u0131n k\u00f6kenine ili\u015fkin mevcut anlay\u0131\u015f alt\u00fcst oldu. “Astronomy and Astrophysics” dergisinde yay\u0131mlanan \u00e7al\u0131\u015fmalar, erken evrende G\u00fcne\u015f‘in kimyas\u0131n\u0131n yeniden de\u011ferlendirilmesini gerektiriyor. B\u00fcy\u00fck Patlama’dan hemen sonra, 13,8 milyar y\u0131l \u00f6nce, evren son derece y\u00fcksek s\u0131cakl\u0131klara ula\u015fm\u0131\u015ft\u0131. Birka\u00e7 saniye sonra, s\u0131cakl\u0131k ilk elementler olan hidrojen ve helyumun olu\u015fmas\u0131na yetecek kadar d\u00fc\u015ft\u00fc. […]<\/p>\n","protected":false},"author":908,"featured_media":33097,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[12],"tags":[],"class_list":["post-33096","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-teknoloji"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/kibrisayna.com\/wp-content\/uploads\/2025\/08\/LrS0N-IR5UKDkc1hUZMP9w.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/kibrisayna.com\/index.php\/wp-json\/wp\/v2\/posts\/33096","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kibrisayna.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kibrisayna.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kibrisayna.com\/index.php\/wp-json\/wp\/v2\/users\/908"}],"replies":[{"embeddable":true,"href":"https:\/\/kibrisayna.com\/index.php\/wp-json\/wp\/v2\/comments?post=33096"}],"version-history":[{"count":0,"href":"https:\/\/kibrisayna.com\/index.php\/wp-json\/wp\/v2\/posts\/33096\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kibrisayna.com\/index.php\/wp-json\/wp\/v2\/media\/33097"}],"wp:attachment":[{"href":"https:\/\/kibrisayna.com\/index.php\/wp-json\/wp\/v2\/media?parent=33096"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kibrisayna.com\/index.php\/wp-json\/wp\/v2\/categories?post=33096"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kibrisayna.com\/index.php\/wp-json\/wp\/v2\/tags?post=33096"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}