{"id":170368,"date":"2021-09-05T20:16:27","date_gmt":"2021-09-05T18:16:27","guid":{"rendered":"https:\/\/osr.org\/?p=170368"},"modified":"2021-09-05T20:16:27","modified_gmt":"2021-09-05T18:16:27","slug":"bilim-insanlari-gunes-sistemi-disinda-insan-yasamina-uygun-gezegenler-kesfetti","status":"publish","type":"post","link":"https:\/\/osr.org\/tr\/blog\/astronomi\/bilim-insanlari-gunes-sistemi-disinda-insan-yasamina-uygun-gezegenler-kesfetti\/","title":{"rendered":"Bilim insanlar\u0131 g\u00fcne\u015f sistemi d\u0131\u015f\u0131nda insan ya\u015fam\u0131na uygun gezegenler ke\u015ffetti"},"content":{"rendered":"

\u0130ngiltere’deki Cambridge \u00dcniversitesi’nden ara\u015ft\u0131rmac\u0131lar\u0131n “Hycean” ad\u0131n\u0131 verdikleri gezegenler, okyanuslarla \u00e7evrili ve hidrojen zengini bir atmosfere sahip.<\/p>\n

Gezegenlerden baz\u0131lar\u0131n\u0131n bir yan\u0131 devaml\u0131 olarak karanl\u0131k, di\u011fer yan\u0131 da ayd\u0131nl\u0131k.<\/p>\n

Y\u0131ld\u0131zlara yak\u0131n olduklar\u0131 i\u00e7in insan ya\u015fam\u0131n\u0131n yaln\u0131zca karanl\u0131k tarafta m\u00fcmk\u00fcn olaca\u011f\u0131 d\u00fc\u015f\u00fcn\u00fcl\u00fcyor. Bilim insanlar\u0131 uzun s\u00fcredir ya\u015fama uygun D\u00fcnya gibi ba\u015fka gezegenlerin izini s\u00fcr\u00fcyordu.<\/p>\n

\u00c7o\u011funlukla da D\u00fcnya ile boyutlar\u0131, k\u00fctlesi, s\u0131cakl\u0131\u011f\u0131 ve atmosfer bile\u015fimi ayn\u0131 olan gezegenleri bulmaya \u00e7al\u0131\u015ft\u0131lar.<\/p>\n

Cambridge \u00dcniversitesi astronomi uzmanlar\u0131 ise yapt\u0131klar\u0131 son \u00e7al\u0131\u015fmalar sonucu yar\u0131\u00e7ap\u0131 D\u00fcnya’dan iki kat fazla, k\u00fctlesi de sekiz kat fazla olan ve “mini-Nept\u00fcn” olarak niteledikleri gezegen formunda da ya\u015fam\u0131n m\u00fcmk\u00fcn olabilece\u011fini ke\u015ffettiler.<\/p>\n

\u0130ngiltere’de yay\u0131mlanan Guardian gazetesinin haberine g\u00f6re uzmanlar, \u00f6n\u00fcm\u00fczdeki iki ya da \u00fc\u00e7 y\u0131l i\u00e7inde ya\u015fanabilir gezegenlerin t\u00fcrlerini yeniden d\u00fc\u015f\u00fcnmemiz sonucu g\u00fcne\u015f sistemimiz \u00f6tesinde ya\u015fam belirtilerini tespit edebilece\u011fimize inan\u0131yor.<\/p>\n

Gezegenler aras\u0131 bir yar\u0131\u015f<\/span><\/h2>\n

Hycean ismi verilen ya\u015fanabilir gezegenler grubu, s\u0131cak, okyanusla kapl\u0131 ve hidrojen zengini de bir atmosfere sahip.D\u00fcnya benzeri gezegenlere oranla bu tip gezegenler say\u0131ca daha fazla ve g\u00f6zlemlenmeleri de daha kolay.
\nK2-18b olarak bilinen ve mini-Nept\u00fcn ad\u0131 verilen gezegen, bunlardan sadece bir tanesi.<\/p>\n

Guardian’a konu\u015fan ara\u015ft\u0131rman\u0131n y\u00fcr\u00fct\u00fcc\u00fclerinden Cambridge \u00dcniversitesi’nden Dr. Nikku Madhusudhan, Hycean gezegenlerini “hidrojen zengini atmosfere sahip su d\u00fcnyalar\u0131” olarak tan\u0131ml\u0131yor. Madhusudhan, bu t\u00fcr gezegenleri bulmaya odaklanman\u0131n D\u00fcnya’n\u0131n \u00f6tesinde ya\u015fam aray\u0131\u015f\u0131n\u0131 da h\u0131zland\u0131rabilece\u011fini s\u00f6yl\u00fcyor.<\/p>\n

Madhusudhan ayr\u0131ca, NASA’n\u0131n Kas\u0131m ay\u0131nda uzaya f\u0131rlatmas\u0131 beklenen James Webb Uzay Teleskobu’nun da deste\u011fiyle \u00f6n\u00fcm\u00fczdeki iki ya da \u00fc\u00e7 y\u0131lda ilk biyolojik g\u00f6stergeleri ke\u015ffedebileceklerini belirtiyor. D\u00fcnya benzeri k\u00fc\u00e7\u00fck gezegenlerin atmosfer \u00f6zelliklerinin , g\u00fcne\u015f benzeri y\u0131ld\u0131zlara yak\u0131n olmalar\u0131 nedeniyle, ya\u015fam belirtileri ke\u015ffetmeyi zorla\u015ft\u0131rd\u0131\u011f\u0131na dikkat \u00e7ekiyor. Ortalama atmosfer s\u0131cakl\u0131\u011f\u0131 200 santigrat dereceye ula\u015fan bu gezegenlerin yar\u0131\u00e7aplar\u0131 D\u00fcnya’dan iki kat daha b\u00fcy\u00fck ve k\u00fctleleri de 10 kat daha fazla.<\/p>\n

B\u00fcy\u00fck gezegenler D\u00fcnya boyutlar\u0131ndaki di\u011ferlerine oranla daha kolay bulunabiliyor. Ancak ekibin “karanl\u0131k hycean” ad\u0131n\u0131 verdikleri ve s\u00fcrekli karanl\u0131k olan taraf d\u0131\u015f\u0131nda ya\u015fam m\u00fcmk\u00fcn olmayabilir. Bunun nedeni, gezegenlerin kendi y\u0131ld\u0131zlar\u0131na \u00e7ok yak\u0131n olmas\u0131 ve ayd\u0131nl\u0131k olan taraf\u0131n da ya\u015fam\u0131n m\u00fcmk\u00fcn olmayaca\u011f\u0131 kadar fazla s\u0131cak olmas\u0131.<\/p>\n

Yani e\u011fer burada bir ya\u015fam kurmak isteseydik, gezegenlerin su katman\u0131 ile kapl\u0131 olmas\u0131 nedeniyle “suda ya\u015fam” \u015fekline uyum sa\u011flamam\u0131z gerekirdi. Madhusudhan, “az miktarda da olsa mikrobiyal ya\u015fam\u0131n buralarda m\u00fcmk\u00fcn oldu\u011funu, zaten D\u00fcnya’daki ya\u015fam\u0131n da ayn\u0131 \u015fekilde ba\u015flad\u0131\u011f\u0131n\u0131 da vurguluyor.<\/p>\n

Kaynak: BBC T\u00fcrkiye<\/p>\n

Bir y\u0131ld\u0131za isim verin!<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\u0130ngiltere’deki Cambridge \u00dcniversitesi’nden ara\u015ft\u0131rmac\u0131lar\u0131n “Hycean” ad\u0131n\u0131 verdikleri gezegenler, okyanuslarla \u00e7evrili ve hidrojen zengini bir atmosfere sahip. Gezegenlerden baz\u0131lar\u0131n\u0131n bir yan\u0131 devaml\u0131 olarak karanl\u0131k, di\u011fer yan\u0131 da ayd\u0131nl\u0131k. Y\u0131ld\u0131zlara yak\u0131n olduklar\u0131 i\u00e7in insan ya\u015fam\u0131n\u0131n yaln\u0131zca karanl\u0131k tarafta m\u00fcmk\u00fcn olaca\u011f\u0131 d\u00fc\u015f\u00fcn\u00fcl\u00fcyor. Bilim insanlar\u0131 uzun s\u00fcredir ya\u015fama uygun D\u00fcnya gibi ba\u015fka gezegenlerin izini s\u00fcr\u00fcyordu. \u00c7o\u011funlukla da D\u00fcnya ile […]<\/p>\n","protected":false},"author":23,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[506],"tags":[],"class_list":["post-170368","post","type-post","status-publish","format-standard","hentry","category-astronomi"],"acf":[],"yoast_head":"\nBilim insanlar\u0131 g\u00fcne\u015f sistemi d\u0131\u015f\u0131nda insan ya\u015fam\u0131na uygun gezegenler ke\u015ffetti - Online Star Register<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/osr.org\/tr\/blog\/astronomi\/bilim-insanlari-gunes-sistemi-disinda-insan-yasamina-uygun-gezegenler-kesfetti\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bilim insanlar\u0131 g\u00fcne\u015f sistemi d\u0131\u015f\u0131nda insan ya\u015fam\u0131na uygun gezegenler ke\u015ffetti - Online Star Register\" \/>\n<meta property=\"og:description\" content=\"\u0130ngiltere’deki Cambridge \u00dcniversitesi’nden ara\u015ft\u0131rmac\u0131lar\u0131n “Hycean” ad\u0131n\u0131 verdikleri gezegenler, okyanuslarla \u00e7evrili ve hidrojen zengini bir atmosfere sahip. Gezegenlerden baz\u0131lar\u0131n\u0131n bir yan\u0131 devaml\u0131 olarak karanl\u0131k, di\u011fer yan\u0131 da ayd\u0131nl\u0131k. Y\u0131ld\u0131zlara yak\u0131n olduklar\u0131 i\u00e7in insan ya\u015fam\u0131n\u0131n yaln\u0131zca karanl\u0131k tarafta m\u00fcmk\u00fcn olaca\u011f\u0131 d\u00fc\u015f\u00fcn\u00fcl\u00fcyor. 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