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F\u0131rat \u00dcniversitesi Fen Fak\u00fcltesi Fizik B\u00f6l\u00fcm\u00fc \u00d6\u011fretim \u00dcyesi Prof. Dr. Fahrettin Yakuphano\u011flu, AA muhabirine, g\u00fcne\u015f sisteminde belirli bir y\u00f6r\u00fcngede dolanan irili ufakl\u0131 asteroit ad\u0131 verilen milyonlarca kaya ve metal par\u00e7alar\u0131n\u0131n oldu\u011funu belirtti.<\/p>\n
Asteroit gibi \u00e7e\u015fitli g\u00f6k cisimlerinden kopan irili ufakl\u0131 kaya par\u00e7alar\u0131n\u0131n \u00e7ekim kuvvetlerinin etkisiyle zaman zaman d\u00fcnyan\u0131n y\u00f6r\u00fcngesiyle kesi\u015ferek b\u00fcy\u00fck bir h\u0131zla atmosfere girebildi\u011fini anlatan Yakuphano\u011flu, d\u00fcn ak\u015fam meydana gelen g\u00f6ky\u00fcz\u00fc olay\u0131n\u0131n bunun bir sonucu oldu\u011funu s\u00f6yledi.<\/p>\n
D\u00fcnya atmosferine giren g\u00f6k cisimlerine meteor ad\u0131 verildi\u011fini, bunlar\u0131n yer y\u00fcz\u00fcne d\u00fc\u015fen k\u00fc\u00e7\u00fck par\u00e7alar\u0131na ise g\u00f6k ta\u015f\u0131 denildi\u011fini belirten Yakuphano\u011flu, \u015f\u00f6yle devam etti:<\/p>\n
“Meteorlar, saniyede 12 ile 72 kilometre gibi \u00e7ok y\u00fcksek bir h\u0131zda atmosfere girdiklerinde \u00e7ok say\u0131da hava molek\u00fcl\u00fc ile kar\u015f\u0131la\u015f\u0131r, bunun sonucunda meydana gelen s\u00fcrt\u00fcnme, bas\u0131n\u00e7 ve di\u011fer kimyasal etkile\u015fimlerden dolay\u0131 g\u00f6k ta\u015f\u0131 \u0131s\u0131narak yanmaya ba\u015flar ve sonras\u0131nda \u0131s\u0131 ve \u0131\u015f\u0131k yayar. Olu\u015fan meteor, yap\u0131s\u0131nda bulunan sodyum, bak\u0131r, demir ve magnezyum gibi elementlerin yo\u011funlu\u011funa g\u00f6re farkl\u0131 renklerde \u0131\u015f\u0131ma yapar. D\u00fcn bir\u00e7ok ilde g\u00f6zlemlenen meteorun mavimsi rengine bakt\u0131\u011f\u0131m\u0131zda, bunun yap\u0131s\u0131nda daha \u00e7ok bak\u0131r, bak\u0131r izotoplar\u0131 ve bile\u015fenlerinin oldu\u011funu s\u00f6yleyebiliriz.”<\/strong><\/em><\/p>\n Yakuphano\u011flu, g\u00fcvenlik kameras\u0131 g\u00f6r\u00fcnt\u00fclerinde meteorun atmosferde belirdikten birka\u00e7 saniye i\u00e7erisinde \u0131\u015f\u0131k yayarak bir anda g\u00f6ky\u00fcz\u00fcnde s\u00f6n\u00fcmlendi\u011fini ifade ederek, \u015f\u00f6yle devam etti:<\/p>\n “\u00d6ng\u00f6r\u00fcm\u00fcz bundan sonraki y\u0131llarda bu t\u00fcr g\u00f6ky\u00fcz\u00fc olaylar\u0131n\u0131n daha \u00e7ok g\u00f6r\u00fclebilece\u011fi y\u00f6n\u00fcndedir ancak bunlar\u0131n \u015fu an i\u00e7in d\u00fcnya i\u00e7in bir tehlike olu\u015fturabildi\u011fini s\u00f6ylememiz do\u011fru de\u011fildir. Bir meteorun d\u00fcnyaya zarar verebilmesi i\u00e7in devasa bir b\u00fcy\u00fckl\u00fckte olmas\u0131 gerekir ki bu b\u00fcy\u00fckl\u00fckte bir meteorun \u00e7ok y\u00fcksek h\u0131zda hareketi gerekir, bu da imkans\u0131z gibi. D\u00fcnya atmosferine giren meteorlar k\u00fc\u00e7\u00fck \u00e7apta olup bunlar atmosfere girdikleri anda s\u00fcrt\u00fcnmeden kaynakl\u0131 \u0131s\u0131narak yanmaya ba\u015flar. Bunlar\u0131n b\u00fcy\u00fck bir k\u0131sm\u0131 atmosferde eriyip buharla\u015f\u0131yor ve d\u00fcnyaya ta\u015f olarak d\u00fc\u015fm\u00fcyor ama baz\u0131lar\u0131 da ta\u015f olarak d\u00fc\u015f\u00fcyor.”<\/strong><\/em><\/p>\n \u00a0“G\u00f6ky\u00fcz\u00fcnde 2-3 saniyelik bir ayd\u0131nlanmaya sebep oldu”<\/strong><\/p>\n Batman \u00dcniversitesi Be\u015firi Organize Sanayi B\u00f6lgesi Meslek Y\u00fcksekokulu Elektrik ve Enerji\u0307 B\u00f6l\u00fcm\u00fc \u00d6\u011fretim \u00dcyesi Do\u00e7. Dr. Ali \u0130hsan Keskin de d\u00fcn ak\u015fam parlak \u0131\u015f\u0131k \u015feklinde g\u00f6r\u00fclen olay\u0131n meteor d\u00fc\u015fmesi oldu\u011funu s\u00f6yledi.<\/p>\n Meteorun atmosferde yanmas\u0131 sonucunda enerji ve \u0131s\u0131ya d\u00f6n\u00fc\u015fmesiyle parlakl\u0131\u011f\u0131n \u0131\u015f\u0131k olarak g\u00f6r\u00fcld\u00fc\u011f\u00fcn\u00fc anlatan Keskin, “Di\u011fer meteorlardan farkl\u0131 olarak, meteorun bizim bak\u0131\u015f a\u00e7\u0131m\u0131za g\u00f6re paralel bir \u015fekilde bize do\u011fru gelmesinden dolay\u0131 bu parlakl\u0131\u011f\u0131 daha fazla g\u00f6rd\u00fck. Di\u011fer meteorlar belli bir a\u00e7\u0131dan atmosfere d\u00fc\u015ft\u00fc\u011f\u00fc i\u00e7in bir \u0131\u015f\u0131k h\u00fczmesi, bir y\u0131ld\u0131z\u0131n kaymas\u0131 olarak seyredebiliyoruz.”<\/strong><\/em> dedi.<\/p>\n Meteorlar\u0131n b\u00fcy\u00fckl\u00fc\u011f\u00fcn\u00fcn genel olarak toz kadar oldu\u011funu ifade eden Keskin, s\u00f6zlerini \u015f\u00f6yle s\u00fcrd\u00fcrd\u00fc:<\/p>\n “Baz\u0131lar\u0131 ceviz b\u00fcy\u00fckl\u00fc\u011f\u00fcnde, baz\u0131lar\u0131 da 7 santimetreyi ge\u00e7ecek kadar oluyor. \u00c7o\u011fu genellikle yery\u00fcz\u00fcnden 70-80 kilometre yukar\u0131da par\u00e7alan\u0131yor. O par\u00e7alanmadan kurtulup d\u00fcnyaya d\u00fc\u015fenler de oluyor ama genel olarak okyanuslara, yerle\u015fim yeri olmayan yerlere d\u00fc\u015f\u00fcyor. Bazen yerle\u015fim yerlerine d\u00fc\u015ferse tahribatlara neden olabiliyor. Bu, meteorun b\u00fcy\u00fckl\u00fc\u011f\u00fcne g\u00f6re de\u011fi\u015febilir. Bir\u00e7ok ilden b\u00fcy\u00fck bir \u0131\u015f\u0131k yans\u0131mas\u0131 olarak g\u00f6r\u00fclen meteor, d\u00fcnyan\u0131n farkl\u0131 noktalar\u0131nda y\u0131ld\u0131z kaymas\u0131 \u015feklinde g\u00f6r\u00fcld\u00fc. Bizim b\u00f6lgemizde ise bu durum g\u00f6ky\u00fcz\u00fcnde 2-3 saniyelik bir ayd\u0131nlanmaya sebep oldu.”<\/strong><\/em><\/p>\n Keskin, hemen g\u00fcn irili ufakl\u0131 binlerce meteorun atmosfere giri\u015f yapt\u0131\u011f\u0131n\u0131 s\u00f6zlerine ekledi.<\/p>\n \u00a0“Ara\u015ft\u0131rmac\u0131lar taraf\u0131ndan \u00e7al\u0131\u015fmalara ba\u015flan\u0131ld\u0131”<\/strong><\/p>\n Bing\u00f6l \u00dcniversitesi Rekt\u00f6r Yard\u0131mc\u0131s\u0131 Prof. Dr. \u0130brahim Yasin Erdo\u011fan ise “Meteorun tam olarak nerede atmosfere girdi\u011fi, yery\u00fcz\u00fcne herhangi bir meteorit (g\u00f6k ta\u015f\u0131 par\u00e7as\u0131) d\u00fc\u015f\u00fcp d\u00fc\u015fmedi\u011fi ile ilgili tespit \u00e7al\u0131\u015fmalar\u0131na ba\u015flanm\u0131\u015ft\u0131r. NASA, Bing\u00f6l \u00dcniversitesi, Ege \u00dcniversitesi ve \u00e7e\u015fitli \u00fcniversitelerdeki ara\u015ft\u0131rmac\u0131lar taraf\u0131ndan \u00e7al\u0131\u015fmalara ba\u015flan\u0131ld\u0131. Yap\u0131lacak \u00e7al\u0131\u015fmalarla meteorun b\u00fcy\u00fckl\u00fc\u011f\u00fc, tam olarak d\u00fc\u015ft\u00fc\u011f\u00fc g\u00fczergah, k\u00f6keni, yap\u0131s\u0131, i\u00e7eri\u011fi gibi bilgiler tespit edilecektir. Meteor ile ilgili daha net bilgiler ilerleyen g\u00fcnlerde ortaya \u00e7\u0131kar\u0131lacakt\u0131r.”<\/strong> <\/em>diye konu\u015ftu.<\/p>\n Diyarbak\u0131r, Elaz\u0131\u011f, Bing\u00f6l, Erzurum ve Tunceli’nin aralar\u0131nda bulundu\u011fu baz\u0131 \u015fehirlerde d\u00fcn ak\u015fam saatlerinde g\u00f6ky\u00fcz\u00fcnde kayan parlak \u0131\u015f\u0131k g\u00f6r\u00fclm\u00fc\u015ft\u00fc.<\/p>\n Kimi vatanda\u015flarca cep telefonu kameras\u0131yla kaydedilen ayr\u0131ca ara\u00e7 kameras\u0131na da yans\u0131yan \u0131\u015f\u0131kla ilgili videolar, sosyal medyada payla\u015f\u0131lm\u0131\u015ft\u0131. Sosyal medyada g\u00f6r\u00fcnt\u00fclerdeki parlak \u0131\u015f\u0131\u011f\u0131n g\u00f6k ta\u015f\u0131 olabilece\u011fi yorumlar\u0131 yap\u0131lm\u0131\u015ft\u0131.<\/p>\n<\/p><\/div>\n