Astronomlar, n\u00f6tron y\u0131ld\u0131z\u0131 birle\u015fmesi yoluyla olu\u015fan ilk elementi tan\u0131mlad\u0131lar.<\/p>\n
Stronsiyum olu\u015fumu, n\u00f6tron y\u0131ld\u0131zlar\u0131n\u0131n birle\u015fmelerinin ard\u0131ndan yay\u0131lan par\u0131lt\u0131l\u0131 \u0131\u015f\u0131\u011f\u0131n dalga boyu \u00f6l\u00e7\u00fcmlerinin yap\u0131lmas\u0131yla g\u00f6zlendi. 23 Ekim g\u00fcn\u00fc Nature’da yay\u0131mlanan ke\u015fif, n\u00f6tron y\u0131ld\u0131z\u0131 \u00e7arp\u0131\u015fmalar\u0131n\u0131n demirden daha a\u011f\u0131r elementlerin olu\u015fumu sa\u011flayan reaksiyonlar zincirini tetikledi\u011fini ortaya koydu.<\/p>\n
Fizik teorileri uzun s\u00fcredir bu reaksiyonlar zincirine odaklanarak, evrendeki g\u00fcm\u00fc\u015f, alt\u0131n ve benzeri elementlerin nas\u0131l olu\u015ftu\u011funa ili\u015fkin varsay\u0131mlar geli\u015ftirdi. \u201cR i\u015flemi\u201d (the r process) olarak adland\u0131r\u0131lan bu reaksiyonlar zinciri, iki n\u00f6tron y\u0131ld\u0131z\u0131n\u0131n birle\u015fmesine ili\u015fkin g\u00f6zleme kadar do\u011frudan ortaya koyulamam\u0131\u015ft\u0131. Y\u0131ld\u0131zlar\u0131n birle\u015fmesinden k\u0131sa bir s\u00fcre sonra yap\u0131lan analizler, birle\u015fmenin \u201cR i\u015flemi\u201d i\u00e7in karakteristik unsurlar\u0131n a\u00e7\u0131\u011fa \u00e7\u0131kt\u0131\u011f\u0131 bir s\u00fcreci ba\u015flatt\u0131\u011f\u0131n\u0131 g\u00f6sterdi.<\/p>\n
Kopenhag \u00dcniversitesi’nden Darach Watson, ara\u015ft\u0131rmaya ili\u015fkin a\u00e7\u0131klamalarda bulunarak \u201c\u015eimdiye kadar s\u00fcren ara\u015ft\u0131rmalarda, hangi elementlerin bu s\u00fcrecin \u00fcr\u00fcn\u00fc olabilece\u011fi ortaya konmam\u0131\u015ft\u0131. Bu durumun temel nedeni, ara\u015ft\u0131rmac\u0131lar\u0131n hen\u00fcz tan\u0131mlanmam\u0131\u015f olan karma\u015f\u0131k atomik yap\u0131lar\u0131 ve R i\u015fleminin elemanlar\u0131n\u0131 incelemeseydi\u201d dedi.<\/p>\n
Watson ve meslekta\u015flar\u0131, n\u00f6tron birle\u015fmesinden sonraki s\u00fcre\u00e7te, \u015eili\u2019de bulunan teleskopla yapt\u0131klar\u0131 g\u00f6zlemde Stronsiyum elementini tespit edebildiler. \u00c7al\u0131\u015fmaya dahil olmayan astrofizik\u00e7i Brian Metzger, \u201cBirle\u015fme s\u0131ras\u0131nda serbest kalan elementin bile\u015fimi hakk\u0131nda bizlere \u00e7ok \u015fey s\u00f6yleyen bir ara\u015ft\u0131rma\u201d dedi.<\/p>\n
Kaynak:<\/strong> https:\/\/www.sciencenews.org\/article\/strontium-heavy-element-neutron-star-merger<\/p>\n","protected":false},"excerpt":{"rendered":" Astronomlar, n\u00f6tron y\u0131ld\u0131z\u0131 birle\u015fmesi yoluyla olu\u015fan ilk elementi tan\u0131mlad\u0131lar. Stronsiyum olu\u015fumu, n\u00f6tron y\u0131ld\u0131zlar\u0131n\u0131n birle\u015fmelerinin ard\u0131ndan yay\u0131lan par\u0131lt\u0131l\u0131 \u0131\u015f\u0131\u011f\u0131n dalga boyu \u00f6l\u00e7\u00fcmlerinin yap\u0131lmas\u0131yla g\u00f6zlendi. 23 Ekim g\u00fcn\u00fc Nature’da yay\u0131mlanan ke\u015fif, n\u00f6tron y\u0131ld\u0131z\u0131 \u00e7arp\u0131\u015fmalar\u0131n\u0131n demirden daha a\u011f\u0131r elementlerin olu\u015fumu sa\u011flayan reaksiyonlar zincirini tetikledi\u011fini ortaya koydu. Fizik teorileri uzun s\u00fcredir bu reaksiyonlar zincirine odaklanarak, evrendeki g\u00fcm\u00fc\u015f, alt\u0131n ve […]<\/p>\n","protected":false},"author":1390,"featured_media":37954,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19],"tags":[1085,2238,5496,5495],"class_list":["post-37953","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bilim-gundemi","tag-isik","tag-notron-yildizi","tag-r-islemi","tag-stronsiyum"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/37953","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/users\/1390"}],"replies":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/comments?post=37953"}],"version-history":[{"count":0,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/37953\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/media\/37954"}],"wp:attachment":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/media?parent=37953"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/categories?post=37953"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/tags?post=37953"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}