{"id":13148,"date":"2017-11-22T15:50:10","date_gmt":"2017-11-22T12:50:10","guid":{"rendered":"http:\/\/109.232.216.219\/~bilimvegelecek\/?p=13148"},"modified":"2018-02-07T19:00:17","modified_gmt":"2018-02-07T16:00:17","slug":"ligo-ve-virgo-isbirligi-ile-gozlemlenmis-ilk-kara-delik-birlesmesi","status":"publish","type":"post","link":"https:\/\/bilimvegelecek.com.tr\/index.php\/2017\/11\/22\/ligo-ve-virgo-isbirligi-ile-gozlemlenmis-ilk-kara-delik-birlesmesi","title":{"rendered":"LIGO ve Virgo i\u015fbirli\u011fi ile g\u00f6zlemlenmi\u015f ilk kara delik birle\u015fmesi"},"content":{"rendered":"

En son LIGO ve Virgo i\u015fbirli\u011fi i\u00e7inde iki n\u00f6tron y\u0131ld\u0131z\u0131n\u0131n birle\u015fmesinden do\u011fan k\u00fctle\u00e7ekim dalgalar\u0131 g\u00f6zlenmi\u015fti. Ve Ekim ay\u0131nda ilan edilen 2017 Nobel Fizik \u00d6d\u00fcl\u00fc, k\u00fctle\u00e7ekim dalgalar\u0131n\u0131n g\u00f6zlemine gitmi\u015fti. Bu geli\u015fmelere giden yolda, \u00fc\u00e7 ayr\u0131 zamanda g\u00f6zlemlenen kara delik birle\u015fmelerinin en \u00a0sonuncusu,\u00a0ayn\u0131 zamanda ilk defa iki ayr\u0131 dedekt\u00f6r taraf\u0131ndan, iki ayr\u0131 k\u0131tada kaydedilmi\u015f olan\u0131 hakk\u0131nda bilgi veren bir haber okuyacaks\u0131n\u0131z: 14 A\u011fustos 2017 tarihinde, iki kara deli\u011fin \u00e7arp\u0131\u015fmas\u0131ndan olu\u015fan\u00a0k\u00fctle\u00e7ekim dalgalar\u0131\u00a0iki farkl\u0131 k\u0131tada kaydedildi.\u00a0<\/em>Farkl\u0131 dedekt\u00f6rler taraf\u0131ndan ilk kez kaydedilen\u00a0k\u00fctle\u00e7ekim dalgalar\u0131 bilimde yeni ufuklar a\u00e7\u0131yor.<\/em><\/p>\n

Livingstone, Louisiana ve Hanford, Washington\u2019da bulunan LIGO (Laser \u0130nterferometre\u00a0K\u00fctle\u00e7ekim Dalgas\u0131 G\u00f6zlemevi) dedekt\u00f6rleri ile \u0130talya, Pisa\u2019da bulunan Virgo dedekt\u00f6r\u00fc, kara deliklerin birle\u015fmesine sonucunda ortaya \u00e7\u0131kan\u00a0k\u00fctle\u00e7ekim\u00a0dalgalar\u0131n\u0131, 14 A\u011fustos g\u00fcn\u00fc, evrensel saat ile 10:30:43\u2019te ayr\u0131 ayr\u0131 g\u00f6zlemlemeyi ba\u015fard\u0131lar. Virgo\u2019nun ilk kez g\u00f6zlemledi\u011fi, GW170814 ad\u0131yla an\u0131lan bulgular\u00a0Physical Review Letters<\/em>\u00a0dergisinde yay\u0131mland\u0131.<\/p>\n

Ulusal Bilim Fonu (NSF) Ba\u015fkan\u0131 France C\u00f3rdova, \u201cBundan bir bu\u00e7uk y\u0131l kadar \u00f6nce, yakla\u015f\u0131k bir milyar \u0131\u015f\u0131k y\u0131l\u0131 uzakl\u0131ktaki iki kara deli\u011fin birle\u015fmesi sonucu ortaya \u00e7\u0131kan\u00a0k\u00fctle\u00e7ekim dalgalar\u0131 LIGO taraf\u0131ndan g\u00f6zlemlenmi\u015fti. Bug\u00fcn ise aralar\u0131nda binlerce kilometre bulunan Virgo ve LIGO g\u00f6zlemevleri,\u00a0k\u00fctle\u00e7ekim dalgalar\u0131na\u00a0ait sinyalleri ayr\u0131 ayr\u0131 yakalayarak, evrenin s\u0131rlar\u0131n\u0131 a\u00e7\u0131\u011fa \u00e7\u0131karmaya y\u00f6nelik \u00f6nemli i\u015fbirli\u011fine imza att\u0131lar\u201d diyor.<\/p>\n

Ke\u015ffedilen\u00a0k\u00fctle\u00e7ekim dalgalar\u0131, iki kara deli\u011fin birle\u015fmesinin son anlar\u0131nda ortaya \u00e7\u0131kt\u0131. Kara deliklerden biri G\u00fcne\u015f\u2019in k\u00fctlesinin 31 kat\u0131 iken di\u011feri 25 kat\u0131 k\u00fctleye sahip. Olay yakla\u015f\u0131k olarak 1,8 milyar \u0131\u015f\u0131k y\u0131l\u0131 uzakl\u0131kta ger\u00e7ekle\u015fti ve neticede G\u00fcne\u015f\u2019in 53 kat\u0131 k\u00fctleli d\u00f6nen bir kara delik olu\u015ftu. Bu da demek oluyor ki eksik 3 G\u00fcne\u015f k\u00fctlesi, birle\u015fme s\u0131ras\u0131nda\u00a0k\u00fctle\u00e7ekim dalgas\u0131 olarak yay\u0131mland\u0131.<\/p>\n

\u201cBu g\u00f6zlem, Virgo-LIGO i\u015fbirli\u011finin yaln\u0131zca ba\u015flang\u0131\u00e7 ad\u0131m\u0131na tekab\u00fcl ediyor\u201d diyen Massachusetts Teknoloji \u00dcniversitesi\u2019nden David Shoemaker, 2018 sonbahar\u0131nda planlanan takvim ile bu t\u00fcr g\u00f6zlemlerin haftada bir veya daha s\u0131k ger\u00e7ekle\u015fece\u011fini vurguluyor.<\/p>\n

2015 A\u011fustos ay\u0131nda \u00e7al\u0131\u015fmaya ba\u015flayan LIGO, \u201cAdvanced(Geli\u015fmi\u015f) LIGO<\/strong>\u201d ad\u0131 verilen; iki \u00f6zde\u015f interferometre i\u00e7eren,\u00a0ikinci jenerasyon\u00a0k\u00fctle\u00e7ekim dalgas\u0131 dedekt\u00f6r\u00fc<\/strong>ne d\u00f6n\u00fc\u015fm\u00fc\u015f durumda. \u0130kinci g\u00f6zlem serisi ise 30 Kas\u0131m 2016\u2019da ba\u015flay\u0131p, 25 A\u011fustos 2017\u2019de tamamland\u0131. Virgo dedekt\u00f6r\u00fc de ikinci nesil bir dedekt\u00f6r ve LIGO g\u00f6zlemlerine 1 A\u011fustos 2017 tarihinde kat\u0131lm\u0131\u015ft\u0131.<\/p>\n

\u201cYeni nesil Virgo dedekt\u00f6r\u00fcm\u00fczle veri almaya ba\u015flad\u0131ktan tam olarak iki hafta sonra\u00a0k\u00fctle\u00e7ekim dalgas\u0131 ke\u015ffine imza atmam\u0131z son derece mutlu edici\u201d diyen Virgo s\u00f6zc\u00fcs\u00fc Jo van den Brand, \u201cVirgo\u2019yu geli\u015ftirmek i\u00e7in harcad\u0131\u011f\u0131m\u0131z\u00a0alt\u0131 senenin meyvelerini almaya ba\u015flad\u0131k\u201d diye ekliyor.<\/p>\n

3 farkl\u0131 dedekt\u00f6r taraf\u0131ndan kaydedilen bir g\u00f6zlem, olay\u0131n ger\u00e7ekle\u015fti\u011fi alan\u0131 olduk\u00e7a daralt\u0131p konumun hassasla\u015fmas\u0131na olanak sa\u011flar. GW170814\u2019\u00fcn g\u00f6zlem alan\u0131 yaln\u0131zca 60 derece kare ve bu alan LIGO\u2019nun tek ba\u015f\u0131na bakt\u0131\u011f\u0131 alandan yakla\u015f\u0131k 10 kat daha k\u00fc\u00e7\u00fck. LIGO s\u00f6zc\u00fcs\u00fc Laura Cadonati, \u201cdaha k\u00fc\u00e7\u00fck alanlara bakabilmek epey \u00f6nemli \u00e7\u00fcnk\u00fc n\u00f6tron y\u0131ld\u0131z\u0131 dahil birle\u015fen kompakt nesnelerin, k\u00fctle\u00e7ekim dalgalar\u0131 d\u0131\u015f\u0131nda geni\u015f yelpazede elektromanyetik dalga \u0131\u015f\u0131mas\u0131 yapmas\u0131 da beklenir\u201d diyerek ortak g\u00f6zlemlerin \u00f6nemini vurguluyor.<\/p>\n

\u201cVirgo ve LIGO\u2019nun bu ortak g\u00f6zlemi neticesinde\u00a0k\u00fctle\u00e7ekim dalgas\u0131 astronomisi bir ad\u0131m daha ileri ta\u015f\u0131nd\u0131\u201d diyen LIGO y\u00f6neticilerinden David H. Reitze, \u201cVirgo,\u00a0k\u00fctle\u00e7ekim dalgalar\u0131n\u0131n ve dalga kaynaklar\u0131n\u0131n konumlar\u0131n\u0131n belirlenebilmesi i\u00e7in g\u00fc\u00e7l\u00fc yenilikler sunuyor ve yak\u0131n gelecekte heyecanl\u0131 ve belki de beklenmedik sonu\u00e7lar almaya haz\u0131rl\u0131kl\u0131 olmal\u0131y\u0131z\u201d diye ekliyor.<\/p>\n","protected":false},"excerpt":{"rendered":"

En son LIGO ve Virgo i\u015fbirli\u011fi i\u00e7inde iki n\u00f6tron y\u0131ld\u0131z\u0131n\u0131n birle\u015fmesinden do\u011fan k\u00fctle\u00e7ekim dalgalar\u0131 g\u00f6zlenmi\u015fti. Ve Ekim ay\u0131nda ilan edilen 2017 Nobel Fizik \u00d6d\u00fcl\u00fc, k\u00fctle\u00e7ekim dalgalar\u0131n\u0131n g\u00f6zlemine gitmi\u015fti. Bu geli\u015fmelere giden yolda, \u00fc\u00e7 ayr\u0131 zamanda g\u00f6zlemlenen kara delik birle\u015fmelerinin en \u00a0sonuncusu,\u00a0ayn\u0131 zamanda ilk defa iki ayr\u0131 dedekt\u00f6r taraf\u0131ndan, iki ayr\u0131 k\u0131tada kaydedilmi\u015f olan\u0131 hakk\u0131nda bilgi […]<\/p>\n","protected":false},"author":634,"featured_media":13149,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[30,19,26],"tags":[247,766,1091,1161,1162],"class_list":["post-13148","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-astronomi","category-bilim-gundemi","category-fizik","tag-astrofizik","tag-kara-delik","tag-kutle","tag-kutlecekim","tag-notron"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t