{"id":11536,"date":"2020-02-27T13:38:10","date_gmt":"2020-02-27T13:38:10","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=11536"},"modified":"2020-02-27T13:38:10","modified_gmt":"2020-02-27T13:38:10","slug":"sun-long-lost-sibling-star-formation","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/tr\/science\/astronomy\/sun-long-lost-sibling-star-formation\/","title":{"rendered":"G\u00fcne\u015f Art\u0131k Yaln\u0131z De\u011fil: \u0130kili Y\u0131ld\u0131z Olu\u015fumu Hakk\u0131nda Yeni I\u015f\u0131k"},"content":{"rendered":"

G\u00fcne\u015f’in Uzun Kay\u0131p Karde\u015fi: Y\u0131ld\u0131z Olu\u015fumu Hakk\u0131nda Yeni Ara\u015ft\u0131rmalar<\/h2>\n\n

\u0130kili Y\u0131ld\u0131zlar: S\u0131k G\u00f6r\u00fclen Bir Olay<\/h2>\n\n

Samanyolu galaksimizin engin geni\u015fli\u011finde, ikili y\u0131ld\u0131zlar yayg\u0131n bir fenomendir. Yer\u00e7ekimiyle birbirine ba\u011fl\u0131 iki y\u0131ld\u0131zdan olu\u015fan bu g\u00f6ksel ikililer, y\u0131ld\u0131z pop\u00fclasyonunun \u00f6nemli bir k\u0131sm\u0131n\u0131 olu\u015fturur.<\/p>\n\n

G\u00fcne\u015f’in \u0130kizinin Gizemi<\/h2>\n\n

On y\u0131llard\u0131r bilim insanlar\u0131, en yak\u0131n y\u0131ld\u0131z\u0131m\u0131z G\u00fcne\u015f’in bir zamanlar Nemesis adl\u0131 ikiz benzeri bir yolda\u015fa sahip olma olas\u0131l\u0131\u011f\u0131n\u0131 d\u00fc\u015f\u00fcn\u00fcyor. Bu esrarengiz karde\u015f, g\u00fcne\u015f sistemimizin k\u00f6kenine dair cevaps\u0131z sorular b\u0131rakarak, g\u00f6kbilimcilerin elinden kay\u0131p gitmi\u015ftir.<\/p>\n\n

Y\u0131ld\u0131z Olu\u015fumu \u00c7al\u0131\u015fmalar\u0131ndan Yeni G\u00f6r\u00fcler<\/h2>\n\n

Astrofizik\u00e7iler Sarah Sadavoy ve Steven Stahler taraf\u0131ndan y\u00fcr\u00fct\u00fclen son ara\u015ft\u0131rmalar, y\u0131ld\u0131zlar\u0131n olu\u015fumu ve evrimi hakk\u0131nda yeni \u0131\u015f\u0131k tuttu. Titiz g\u00f6zlemleri ve istatistiksel modellemeleri, G\u00fcne\u015f’imiz de dahil olmak \u00fczere y\u0131ld\u0131zlar\u0131n \u00e7o\u011funun muhtemelen ikili sistemlerden ortaya \u00e7\u0131kt\u0131\u011f\u0131na dair inand\u0131r\u0131c\u0131 kan\u0131tlar sa\u011flad\u0131.<\/p>\n\n

Y\u0131ld\u0131z Olu\u015fumu: \u00c7iftler Halinde Bir \u00d6yk\u00fc<\/h2>\n\n

Ekibin, Monthly Notices of the Royal Astronomy Society adl\u0131 sayg\u0131n dergide yay\u0131mlanan \u00e7al\u0131\u015fmas\u0131, aktif y\u0131ld\u0131z olu\u015fumu ile bilinen bir b\u00f6lge olan Perseus tak\u0131my\u0131ld\u0131z\u0131ndaki y\u0131ld\u0131zlar\u0131n da\u011f\u0131l\u0131m\u0131n\u0131 ve ya\u015f\u0131n\u0131 analiz etti. Bulgular\u0131 \u00e7arp\u0131c\u0131 bir kal\u0131p ortaya \u00e7\u0131kard\u0131: 46.500 milyon milden daha fazla uzakl\u0131ktaki y\u0131ld\u0131zlar, birbirine yak\u0131n konumdakilere k\u0131yasla belirgin \u015fekilde daha gen\u00e7 ya\u015flar sergiledi.<\/p>\n\n

Bu g\u00f6zlem, y\u0131ld\u0131zlar\u0131n ba\u015flang\u0131\u00e7ta \u00e7iftler halinde olu\u015ftu\u011funu d\u00fc\u015f\u00fcnd\u00fcrmektedir. Zamanla, bu ikili sistemler \u00e7e\u015fitli evrimsel yollardan ge\u00e7ebilir. Baz\u0131 ikililer yer\u00e7ekimiyle ba\u011fl\u0131 kalarak kompakt sistemler olu\u015ftururken, di\u011ferleri birbirinden ayr\u0131larak yaln\u0131z y\u0131ld\u0131zlar haline gelir.<\/p>\n\n

G\u00fcne\u015f \u0130\u00e7in Etkileri<\/h2>\n\n

Bu ara\u015ft\u0131rman\u0131n sonu\u00e7lar\u0131, g\u00fcne\u015f sistemimizin tarihini anlamak i\u00e7in derin etkiler ta\u015f\u0131r. Sadavoy ve Stahler’in bulgular\u0131, G\u00fcne\u015f’in bir zamanlar Nemesis ad\u0131nda ikiz bir y\u0131ld\u0131za sahip oldu\u011fu hipotezini g\u00fc\u00e7l\u00fc bir \u015fekilde desteklemektedir. Bu uzun zamand\u0131r kay\u0131p karde\u015f, milyonlarca y\u0131l \u00f6nce G\u00fcne\u015f’ten ayr\u0131larak Samanyolu’nun engin bo\u015flu\u011funa do\u011fru yol alm\u0131\u015f olabilir.<\/p>\n\n

Nemesis’in Pe\u015finde<\/h2>\n\n

Nemesis’in varl\u0131\u011f\u0131na dair k\u0131\u015fk\u0131rt\u0131c\u0131 kan\u0131tlara ra\u011fmen, \u015fu anki yeri bilinmemektedir. G\u00f6kbilimciler, G\u00fcne\u015f’in g\u00f6ksel aile tarihinin son b\u00f6l\u00fcm\u00fcn\u00fc ortaya \u00e7\u0131karmay\u0131 umarak bu anla\u015f\u0131lmas\u0131 g\u00fc\u00e7 yolda\u015f\u0131 aramaya devam ediyor.<\/p>\n\n

Y\u0131ld\u0131z Olu\u015fumu: Evrenin Ge\u00e7mi\u015fine Bir Pencere<\/h2>\n\n

G\u00fcne\u015f i\u00e7in belirli etkilerinin \u00f6tesinde, ikili y\u0131ld\u0131z olu\u015fumu ara\u015ft\u0131rmas\u0131n\u0131n astrofizik i\u00e7in daha geni\u015f bir \u00f6nemi vard\u0131r. Y\u0131ld\u0131z olu\u015fumunu y\u00f6neten s\u00fcre\u00e7leri inceleyerek bilim insanlar\u0131, evrenimizin k\u00f6kenleri ve evrimi hakk\u0131nda de\u011ferli bilgiler elde ederler.<\/p>\n\n

Sadavoy, y\u0131ld\u0131z olu\u015fumunu anlayarak kozmosun tarihini ayd\u0131nlatman\u0131n \u00f6nemini vurguluyor. “Bu ara\u015ft\u0131rma, yo\u011fun y\u0131ld\u0131z \u00e7ekirdekleri ve i\u00e7lerindeki g\u00f6m\u00fcl\u00fc y\u0131ld\u0131zlar hakk\u0131ndaki anlay\u0131\u015f\u0131m\u0131z\u0131 yeniden \u015fekillendirecek,” diye a\u00e7\u0131kl\u0131yor.<\/p>\n\n

Sonu\u00e7<\/h2>\n\n

Y\u0131ld\u0131zlar\u0131n muhtemelen \u00e7iftler halinde olu\u015ftu\u011fu ke\u015ffi, y\u0131ld\u0131z evrimi ve evrenin tarihi hakk\u0131ndaki anlay\u0131\u015f\u0131m\u0131z i\u00e7in derin etkiler ta\u015f\u0131maktad\u0131r. Nemesis’in aray\u0131\u015f\u0131 devam ederken, y\u0131ld\u0131z olu\u015fumunun s\u00fcregelen \u00e7al\u0131\u015fmas\u0131, g\u00f6ksel mahallemizin ve \u00f6tesindeki engin alan\u0131n daha fazla s\u0131rr\u0131n\u0131 a\u00e7\u0131\u011fa \u00e7\u0131karma s\u00f6z\u00fc vermektedir.<\/p>","protected":false},"excerpt":{"rendered":"

G\u00fcne\u015f’in Uzun Kay\u0131p Karde\u015fi: Y\u0131ld\u0131z Olu\u015fumu Hakk\u0131nda Yeni Ara\u015ft\u0131rmalar \u0130kili Y\u0131ld\u0131zlar: S\u0131k G\u00f6r\u00fclen Bir Olay Samanyolu galaksimizin engin geni\u015fli\u011finde, ikili y\u0131ld\u0131zlar yayg\u0131n bir fenomendir. Yer\u00e7ekimiyle birbirine ba\u011fl\u0131 iki y\u0131ld\u0131zdan olu\u015fan…<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[437],"tags":[436,15606,1173,697,15607,15608],"class_list":["post-11536","post","type-post","status-publish","format-standard","hentry","category-astronomy","tag-astrophysics","tag-binary-stars","tag-solar-system","tag-cosmology","tag-nemesis","tag-star-formation"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/11536","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/comments?post=11536"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/11536\/revisions"}],"predecessor-version":[{"id":11537,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/11536\/revisions\/11537"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/media?parent=11536"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/categories?post=11536"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/tags?post=11536"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}