{"id":148839,"date":"2021-01-24T15:29:01","date_gmt":"2021-01-24T13:29:01","guid":{"rendered":"https:\/\/osr.org\/?p=148839"},"modified":"2021-01-24T15:29:01","modified_gmt":"2021-01-24T13:29:01","slug":"gunes-depremleri-ve-yildizlar","status":"publish","type":"post","link":"https:\/\/osr.org\/tr\/blog\/astronomi\/gunes-depremleri-ve-yildizlar\/","title":{"rendered":"G\u00fcne\u015f depremleri ve y\u0131ld\u0131zlar"},"content":{"rendered":"
Bilim insanlar\u0131 uzun zamand\u0131r bu olaylar\u0131n manyetik kuvvetlerden veya \u0131s\u0131nm\u0131\u015f d\u0131\u015f atmosferden kaynakland\u0131\u011f\u0131na inan\u0131yordu. Ancak \u015fimdi, NASA’n\u0131n Solar Dynamics G\u00f6zlemevi (SDO) bu d\u00fc\u015f\u00fcnceyi yalanlayan bir bulgu elde etti.<\/p>\n
G\u00fcne\u015f sars\u0131nt\u0131lar\u0131, G\u00fcne\u015f patlamalar\u0131 esnas\u0131nda y\u0131ld\u0131z \u00fczerinde meydana gelen sismik faaliyetlere deniyor. Bunlar D\u00fcnya \u00fczerindeki depremlerle benzerlik g\u00f6steriyor.<\/p>\n
NASA’ya g\u00f6re bu t\u00fcr olaylar s\u0131ras\u0131nda G\u00fcne\u015f y\u00fczeyi boyunca enerji dalgalar\u0131 sal\u0131n\u0131yor ve sars\u0131nt\u0131lar patlamay\u0131 takip eden dakikalarda ger\u00e7ekle\u015fiyor. G\u00fcne\u015f patlamalar\u0131 y\u0131ld\u0131z\u0131n d\u0131\u015f atmosferinde meydana geliyor ve enerjiyle \u0131\u015f\u0131\u011f\u0131 serbest b\u0131rak\u0131yor.<\/p>\n
Bilim insanlar\u0131, G\u00fcne\u015f sars\u0131nt\u0131s\u0131 dalgalar\u0131n\u0131n, y\u0131ld\u0131z\u0131n y\u00fczeyinden i\u00e7 k\u0131sm\u0131na do\u011fru hareket etti\u011fini d\u00fc\u015f\u00fcn\u00fcyordu ama bu d\u00fc\u015f\u00fcnce SDO’nun yeni bulgular\u0131yla \u00e7eli\u015fiyor.<\/p>\n
NASA, ilk olarak y\u0131llar \u00f6nce orta dereceli bir parlama g\u00f6zlemledi ve ard\u0131ndan s\u0131rad\u0131\u015f\u0131, keskin dalgalanmalar yaratan bir G\u00fcne\u015f sars\u0131nt\u0131s\u0131 ya\u015fand\u0131.<\/p>\n
Bunun ard\u0131ndan g\u00f6kbilimciler, bu dalgalar\u0131 takip ederek sars\u0131nt\u0131lar\u0131n kayna\u011f\u0131n\u0131 ara\u015ft\u0131rd\u0131. SDO’nun heliosismik ve manyetik g\u00f6r\u00fcnt\u00fcleyicisi, G\u00fcne\u015f y\u00fczeyindeki hareketlili\u011fi \u00f6l\u00e7t\u00fc.<\/p>\n
\u00d6l\u00e7\u00fcmlerin sonucunda dalgalar\u0131n G\u00fcne\u015f y\u00fczeyinin y\u00fczeyinden derinlerine do\u011fru hareket etmedi\u011fi, bunun yerine y\u0131ld\u0131z\u0131n derinliklerinden geldi\u011fi tespit edildi.<\/p>\n
Zira dalgalar\u0131n kayna\u011f\u0131, daha \u00f6nce d\u00fc\u015f\u00fcn\u00fcld\u00fc\u011f\u00fc gibi y\u00fczeyde de\u011fil, y\u00fczeyin yakla\u015f\u0131k bin 127 km. alt\u0131nda yat\u0131yordu.<\/p>\n
Ara\u015ft\u0131rmac\u0131lar \u015fimdi, bu dalgalar\u0131n derinlerdeki bir kaynaktan geldi\u011fini ve bir \u015fekilde \u00fcst atmosferdeki G\u00fcne\u015f patlamas\u0131yla tetiklendi\u011fini d\u00fc\u015f\u00fcn\u00fcyor.<\/p>\n
Ancak bu sars\u0131nt\u0131lar\u0131na neden olan mekanizma hen\u00fcz kesin olarak belirlenemedi. NASA, s\u00f6z konusu mekanizmaya dair yeni ipu\u00e7lar\u0131 bulmak i\u00e7in di\u011fer G\u00fcne\u015f sars\u0131nt\u0131lar\u0131n\u0131 g\u00f6zlemlemeye devam edecek.<\/p>\n
Kaynak: Independent T\u00fcrk\u00e7e<\/p>\n