{"id":35856,"date":"2019-08-05T03:20:27","date_gmt":"2019-08-05T00:20:27","guid":{"rendered":"https:\/\/bilimvegelecek.com.tr\/?p=35856"},"modified":"2019-08-02T17:19:27","modified_gmt":"2019-08-02T14:19:27","slug":"biliminsanlari-yapay-gunes-kullanarak-gunes-ruzgariyla-ilgili-bilgi-elde-etti","status":"publish","type":"post","link":"https:\/\/bilimvegelecek.com.tr\/index.php\/2019\/08\/05\/biliminsanlari-yapay-gunes-kullanarak-gunes-ruzgariyla-ilgili-bilgi-elde-etti","title":{"rendered":"Biliminsanlar\u0131, yapay g\u00fcne\u015f kullanarak g\u00fcne\u015f r\u00fczgar\u0131yla ilgili bilgi elde etti"},"content":{"rendered":"

Biliminsanlar\u0131 g\u00fcne\u015f r\u00fczg\u00e2r\u0131n\u0131n hareketlerini anlamaya bir ad\u0131m daha yakla\u015ft\u0131lar. Bunun i\u00e7in ara\u015ft\u0131rmac\u0131lar, g\u00fcne\u015ften yay\u0131lan b\u00fcy\u00fck spiral manyetik alan\u0131n modellenmesinde \u00fc\u00e7 metrelik yapay g\u00fcne\u015f kulland\u0131lar. G\u00fcne\u015f r\u00fczg\u00e2r\u0131, iyonize edilmi\u015f bir plazma ak\u0131\u015f\u0131n\u0131 ve g\u00fcne\u015f y\u00fczeyinden saniyede 800 kilometreye kadar yay\u0131lan par\u00e7ac\u0131klar\u0131 kapsar.<\/p>\n

G\u00fcne\u015f kendi ekseni etraf\u0131nda d\u00f6nd\u00fck\u00e7e, \u00e7ekirde\u011findeki plazma d\u00f6nerek t\u00fcm g\u00fcne\u015f sistemini kaplayan manyetik bir alan olu\u015fturur. Ba\u015flang\u0131\u00e7ta, alan d\u00fcz \u00e7izgiler halinde yay\u0131l\u0131r. Belli bir mesafeden ge\u00e7tikten sonra, d\u00f6nme hareketinin, kuvvet \u00e7izgilerini deforme etmeye ba\u015flad\u0131\u011f\u0131 s\u0131n\u0131ra ula\u015f\u0131r. Bu s\u0131n\u0131r, g\u00fcne\u015fle gezegenler aras\u0131nda kalan uzay\u0131n kesin s\u0131n\u0131r\u0131 olarak kabul edilen ve “Alfv\u00e9n y\u00fczeyi” olarak adland\u0131r\u0131lan bir s\u0131n\u0131rd\u0131r. Bu deformasyonun sonucunda, t\u00fcm g\u00fcne\u015f sistemini kaplayan karma\u015f\u0131k spiral \u015fekilli bir manyetik alan meydana gelir. Bu Alfv\u00e9n y\u00fczeyinin olduk\u00e7a dinamik oldu\u011fu varsay\u0131lmaktad\u0131r, ancak onun \u00fczerinde detayl\u0131 \u00e7al\u0131\u015fma yapmak zordur.<\/p>\n

Durumu k\u0131smen de olsa geli\u015ftirmek i\u00e7in, ABD’deki Wisconsin-Madison \u00dcniversitesi’nden Ethan Peterson liderli\u011findeki fizik\u00e7iler, \u00fcniversiteden elde ettikleri donan\u0131m\u0131 kullanarak g\u00fcne\u015fin \u00f6l\u00e7ekli ve basitle\u015ftirilmi\u015f bir modelini olu\u015fturmaya karar verdiler. H\u0131zla d\u00f6nen bir plazma manyetosferi olarak a\u00e7\u0131klanabilecek bu model, daha yayg\u0131n olarak “B\u00fcy\u00fck K\u0131rm\u0131z\u0131 K\u00fcre” ad\u0131yla tan\u0131n\u0131r. Bu makine, merkezinde g\u00fc\u00e7l\u00fc bir m\u0131knat\u0131s bulunan, \u00fc\u00e7 metre \u00e7ap\u0131nda dev bir k\u00fcredir. Peterson ve \u00e7al\u0131\u015fma arkada\u015flar\u0131; k\u00fcreyi, daha sonra plazma olu\u015fturmak i\u00e7in iyonize ettikleri helyum ile doldurdular, k\u00fcrenin i\u00e7inden bir elektrik ak\u0131m\u0131 ge\u00e7irdiler ve bu k\u00fcreyi bir manyetik alan olu\u015fturmak i\u00e7in h\u0131zla d\u00f6nd\u00fcrd\u00fcler. Cihaz\u0131n i\u00e7indeki sondalar\u0131n yard\u0131m\u0131 ile ara\u015ft\u0131rmac\u0131lar, uydular taraf\u0131ndan al\u0131nan \u00f6l\u00e7\u00fcmlere yak\u0131n olan plazma i\u00e7indeki hareketleri g\u00f6zlemleyerek, g\u00fcne\u015fin do\u011fru bir modelini olu\u015fturdular.<\/p>\n

\"\"
Ara\u015ft\u0131rmac\u0131lar; bulgular\u0131n, Parker G\u00fcne\u015f Sondas\u0131 taraf\u0131ndan g\u00f6nderilen verilerin i\u015flenmesinde faydal\u0131 olaca\u011f\u0131n\u0131 s\u00f6yl\u00fcyorlar<\/figcaption><\/figure>\n

Bu model, tek bir yeri tek bir noktada \u00f6l\u00e7en mevcut uydu verilerinin aksine, manyetik alan ve plazma ak\u0131\u015f\u0131 aras\u0131ndaki etkile\u015fimin \u00fc\u00e7 boyutlu olarak g\u00f6zlemlenmesini sa\u011flad\u0131. \u00d6nemli bir nokta da \u015fuydu ki; bu laboratuvar modeli, yava\u015f hareket eden ve g\u00fcne\u015f r\u00fczgarlar\u0131n\u0131 h\u0131zland\u0131ran \u201cg\u00fcne\u015f patlamas\u0131\u201d olarak bilinen olaya benzer \u015fekilde ger\u00e7ekle\u015fti. \u00d6yle ki plazman\u0131n yeterince h\u0131zl\u0131 hareket etti\u011fi ve manyetik alan\u0131n, modelin durup p\u00fcsk\u00fcrebilece\u011fi kadar zay\u0131f oldu\u011fu noktalar\u0131 ortaya \u00e7\u0131kard\u0131. Bu p\u00fcsk\u00fcrmelerin uydular taraf\u0131ndan g\u00f6zlendi\u011fini, ancak onlar\u0131 neyin harekete ge\u00e7irildi\u011finin bilinmedi\u011fini belirten Peterson, deneylerinde benzer patlamalar g\u00f6rd\u00fcklerini ve bu patlamalar\u0131n nas\u0131l ger\u00e7ekle\u015fti\u011fini belirlediklerini s\u00f6yledi.<\/p>\n

Ara\u015ft\u0131rmac\u0131lar, Nature Physics dergisinde yay\u0131nlanan bulgular\u0131n, g\u00fcne\u015fin manyetik alan\u0131n\u0131 \u00f6l\u00e7mek i\u00e7in \u00f6zel olarak geli\u015ftirilen NASA\u2019ya ait Parker G\u00fcne\u015f Sondas\u0131 taraf\u0131ndan g\u00f6nderilen verilerin i\u015flenmesinde faydal\u0131 olaca\u011f\u0131n\u0131 s\u00f6yl\u00fcyorlar.<\/p>\n

Kaynak: https:\/\/cosmosmagazine.com\/physics\/big-red-ball-gives-clues-to-the-sun-s-wind<\/p>\n","protected":false},"excerpt":{"rendered":"

Biliminsanlar\u0131 g\u00fcne\u015f r\u00fczg\u00e2r\u0131n\u0131n hareketlerini anlamaya bir ad\u0131m daha yakla\u015ft\u0131lar. Bunun i\u00e7in ara\u015ft\u0131rmac\u0131lar, g\u00fcne\u015ften yay\u0131lan b\u00fcy\u00fck spiral manyetik alan\u0131n modellenmesinde \u00fc\u00e7 metrelik yapay g\u00fcne\u015f kulland\u0131lar. G\u00fcne\u015f r\u00fczg\u00e2r\u0131, iyonize edilmi\u015f bir plazma ak\u0131\u015f\u0131n\u0131 ve g\u00fcne\u015f y\u00fczeyinden saniyede 800 kilometreye kadar yay\u0131lan par\u00e7ac\u0131klar\u0131 kapsar. G\u00fcne\u015f kendi ekseni etraf\u0131nda d\u00f6nd\u00fck\u00e7e, \u00e7ekirde\u011findeki plazma d\u00f6nerek t\u00fcm g\u00fcne\u015f sistemini kaplayan manyetik bir […]<\/p>\n","protected":false},"author":2049,"featured_media":35857,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19],"tags":[5144,5145,5142,5143,993],"class_list":["post-35856","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bilim-gundemi","tag-buyuk-kirmizi-kure","tag-gunes-patlamasi","tag-gunes-ruzgarlari","tag-gunes-sondasi","tag-manyetik-alan"],"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