ESA\u2019n\u0131n uzay arac\u0131 Rosetta, ilk defa bir kuyrukluy\u0131ld\u0131zda nitrojen gaz\u0131 \u00f6l\u00e7erek, G\u00fcne\u015f Sistemimizin olu\u015fumunun erken safhalar\u0131na ili\u015fkin ipucu sa\u011flad\u0131.
\nD\u00fcnya\u2019n\u0131n atmosferinde yo\u011fun \u015fekilde bulunan molek\u00fcler nitrojen N2 , ayr\u0131ca Nept\u00fcn\u2019\u00fcn ay\u0131 Triton ve Pluton\u2019un atmosferlerinde ve y\u00fczeylerinde de bulunur. G\u00fcne\u015f Sistemimizin olu\u015ftu\u011fu nebulada da nitrojenin bu formunun bask\u0131n oldu\u011fu d\u00fc\u015f\u00fcn\u00fcl\u00fcyor. Bern \u00dcniversitesi Fizik Enstit\u00fcs\u00fc\u2019nden Martin Rubin ve tak\u0131m\u0131, kendi deyi\u015fleriyle \u201cen \u00e7ok istedikleri molek\u00fcl\u00fc\u201d art\u0131k 67P\/Churyumov-Gerasimenko kuyrukluy\u0131ld\u0131z\u0131n\u0131n atmosferinde \u00f6l\u00e7ebiliyorlar.
\n\u201cChury\u201d gibi bir\u00e7ok kuyrukluy\u0131ld\u0131z\u0131n Triton ve Pluton ile ayn\u0131 b\u00f6lgede olu\u015ftu\u011fu d\u00fc\u015f\u00fcn\u00fclmesine ra\u011fmen, bug\u00fcne kadar hi\u00e7birinde molek\u00fcler nitrojen saptanamam\u0131\u015ft\u0131. Rubin, uzaktan ya da yerinde yap\u0131lan incelemelerin, kuyruky\u0131ld\u0131zdaki buz sadece az miktarda nitrojen tuttu\u011fu i\u00e7in yetersiz kald\u0131\u011f\u0131n\u0131 ekliyor.
\nRubin\u2019in tak\u0131m\u0131n\u0131n \u00f6l\u00e7\u00fcmleri Bern \u00dcniversitesi\u2019nde yap\u0131lan k\u00fctle spektrofotometresi ROSINA ile ger\u00e7ekle\u015ftirdi. Bu cihaz Rosetta uzay arac\u0131n\u0131n \u00fcst\u00fcnde bulunuyor. Ara\u00e7 Rosetta ile birlikte uzayda 10 y\u0131l seyahat ettikten sonra A\u011fustos 2014\u2019te Chury\u2019e ula\u015ft\u0131 ve o zamandan beri veri topluyor. \u201cROSINA inceleme yerindeki, karbonmonoksit ve molek\u00fcler nitrojen gibi, neredeyse ayn\u0131 a\u011f\u0131rl\u0131\u011fa sahip molek\u00fclleri ay\u0131rt etme \u00e7\u00f6z\u00fcn\u00fcrl\u00fc\u011f\u00fcne sahip\u201d diyen Rubin, \u201cNeredeyse 20 y\u0131l \u00f6nce yap\u0131lan bir cihaz\u0131n sonunda bu kadar zamand\u0131r aranan bilgileri toplad\u0131\u011f\u0131n\u0131 g\u00f6rmek harika\u201d diye devam etti. \u00d6l\u00e7\u00fcmler Science dergisinde yay\u0131mland\u0131.
\nNitrojen \u00f6l\u00e7\u00fcmleri Chury\u2019nin G\u00fcne\u015f Sistemimizin \u00e7ok so\u011fuk bir b\u00f6lgesinde olu\u015ftu\u011funu g\u00f6steriyor. \u201c67P\/Churyumov-Gerasimenko gibi kuyrukluy\u0131ld\u0131zlar\u0131n D\u00fcnya\u2019ya ta\u015f\u0131d\u0131klar\u0131 molek\u00fcler nitrojen miktar\u0131, amonyak gibi nitrojenli di\u011fer molek\u00fcllerle kar\u015f\u0131la\u015ft\u0131r\u0131ld\u0131\u011f\u0131nda \u00e7ok d\u00fc\u015f\u00fck kal\u0131yor\u201d diyor ROSINA Ba\u015f Ara\u015ft\u0131rmac\u0131s\u0131 Kathrin Altwegg. Ona g\u00f6re bu bulgular Chury gibi J\u00fcpiter ailesi kuyrukluy\u0131ld\u0131zlar\u0131n D\u00fcnyadaki suyun ve nitrojen gibi buharla\u015f\u0131c\u0131 maddelerin ba\u015f kayna\u011f\u0131 olamayaca\u011f\u0131n\u0131 g\u00f6steriyor. Altwegg ve tak\u0131m\u0131, kuyrukluy\u0131ld\u0131zdaki suda bulunan d\u00f6teryum\/hidrojen oran\u0131n D\u00fcnyadakinden farkl\u0131 oldu\u011funu ke\u015ffetti\u011fi i\u00e7in D\u00fcnyadaki suyun ba\u015fka kayna\u011f\u0131 oldu\u011funu da \u00f6nermi\u015flerdi. \u201cKuyrukluy\u0131ld\u0131zlardaki kay\u0131p molek\u00fcler nitrojen sorusu, t\u0131pk\u0131 \u2018Suyumuzun kayna\u011f\u0131 nedir?\u2019 sorusu gibi neredeyse 30 y\u0131l \u00f6nce 1P\/Halley kuyrukluy\u0131ld\u0131z\u0131na yap\u0131lan Giotto g\u00f6revi esans\u0131nda sorulmaya ba\u015fland\u0131. Ve sonunda cevaplanabilecek olmas\u0131 \u00e7ok memnuiyet verici\u201d diyor Altwegg.
\nESA\u2019n\u0131n Rosetta Projesi biliminsanlar\u0131ndan Matt Taylor molek\u00fcler nitrojenin ke\u015ffinin, G\u00fcne\u015f Sisteminin olu\u015fumunda J\u00fcpiter ailesi kuyrukluy\u0131ld\u0131zlar\u0131n rol\u00fcn\u00fcn anla\u015f\u0131lmas\u0131 i\u00e7in \u00f6nemli bir ad\u0131m oldu\u011funu s\u00f6yl\u00fcyor; ama bilmecenin halen tamamen \u00e7\u00f6z\u00fclmedi\u011fini ekliyor: \u201cRosetta ve Chury\u2019nin g\u00fcnberi uzakl\u0131\u011f\u0131na ula\u015fmas\u0131na be\u015f ay var ve biz bu s\u00fcre\u00e7te gazlar\u0131n birle\u015fiminin de\u011fi\u015fimini g\u00f6zlemleyerek bunun bizi kuyrukluy\u0131ld\u0131z\u0131n ge\u00e7mi\u015fiyle ilgili ne s\u00f6yledi\u011fini \u00e7\u00f6zmeye \u00e7al\u0131\u015faca\u011f\u0131z.\u201d<\/p>\n
\u00c7eviren: Derya Yavuz Kaynak:<\/strong> http:\/\/www.sciencedaily.com\/releases\/2015\/03\/150319150654.htm<\/p>\n","protected":false},"excerpt":{"rendered":" ESA\u2019n\u0131n uzay arac\u0131 Rosetta, ilk defa bir kuyrukluy\u0131ld\u0131zda nitrojen gaz\u0131 \u00f6l\u00e7erek, G\u00fcne\u015f Sistemimizin olu\u015fumunun erken safhalar\u0131na ili\u015fkin ipucu sa\u011flad\u0131. D\u00fcnya\u2019n\u0131n atmosferinde yo\u011fun \u015fekilde bulunan molek\u00fcler nitrojen N2 , ayr\u0131ca Nept\u00fcn\u2019\u00fcn ay\u0131 Triton ve Pluton\u2019un atmosferlerinde ve y\u00fczeylerinde de bulunur. G\u00fcne\u015f Sistemimizin olu\u015ftu\u011fu nebulada da nitrojenin bu formunun bask\u0131n oldu\u011fu d\u00fc\u015f\u00fcn\u00fcl\u00fcyor. Bern \u00dcniversitesi Fizik Enstit\u00fcs\u00fc\u2019nden Martin […]<\/p>\n","protected":false},"author":1,"featured_media":1379,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[30,19],"tags":[],"class_list":["post-2334","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-astronomi","category-bilim-gundemi"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/2334","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/comments?post=2334"}],"version-history":[{"count":0,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/2334\/revisions"}],"wp:attachment":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/media?parent=2334"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/categories?post=2334"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/tags?post=2334"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n\u0130T\u00dc Molek\u00fcler Biyoloji ve Genetik Blm<\/strong><\/em><\/p>\n