تاریخ انتشار : شنبه 9 اکتبر 2021 - 21:42
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رقص ۲ کهکشان مارپیچی در فضا

رقص ۲ کهکشان مارپیچی در فضا

تلسکوپ فضایی هابل تصویری از رقص دو کهکشان در فضا ثبت کرده است.  ناسا به تازگی تصویری از دو کهکشان در صفحه اینستاگرام خود منتشر کرده است. در این تصویر دو کهکشان به نام “آرپ ۹۱” (Arp ۹۱) دیده می‌شوند. این دو کهکشان در فاصله‌ی ۱۰۰ میلیون سال نوری از زمین قرار دارند. به نظر

رقص ۲ کهکشان مارپیچی در فضا

تلسکوپ فضایی هابل تصویری از رقص دو کهکشان در فضا ثبت کرده است.

 ناسا به تازگی تصویری از دو کهکشان در صفحه اینستاگرام خود منتشر کرده است. در این تصویر دو کهکشان به نام “آرپ ۹۱” (Arp ۹۱) دیده می‌شوند. این دو کهکشان در فاصله‌ی ۱۰۰ میلیون سال نوری از زمین قرار دارند. به نظر می‌رسد کهکشانی که در پایین تصویر قرار دارد کهکشان بالایی را به سمت خود می‌کشد و کهکشان بالایی بازوی مارپیچی خود را به سمت پایین آورده است.
هردوی این کهکشان‌ها در دسته‌ی کهکشان‌های مارپیچی طبقه‌بندی می‌شوند اما ظاهر آن‌ها به دلیل جهت‌ قرارگیری نسبت به زمین متفاوت به نظر می‌رسد. ستاره‌شناسان فکر می‌کنند که برخورد کهکشان‌های مارپیچی با یکدیگر منجر به ساخت نوع دیگری از کهکشان‌ها به نام کهکشان بیضوی می‌شود.
چنین برخوردهایی حتی با وجود پر انرژی و بزرگ بودن، سریع نیستند و طی صدها میلیون سال رخ می‌دهند. بنابراین نمی‌توان انتظار ایجاد تغییر در این دو کهکشان در طول زندگی خود داشته باشیم.
تلسکوپ فضایی هابل که این تصویر را ثبت کرده است، در سال ۱۹۹۰ به فضا رفت و بیش از ۳۰ سال است که تصاویری از فضا به زمین می‌فرستد. این تلسکوپ تاکنون چندین بار مورد تعمیر قرار گرفته که آخرین آن در ماه ژوئیه سال جاری انجام شد.
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