English: This Picture of the Week shows the Vela ring galaxy, visible as a bright core surrounded by a baby blue halo. As the name suggests, this ring galaxy — located in the southern constellation of Vela (The Sails) — is notable due to its compact core and large circular belt of gas and stars.
It is thought that ring galaxies like this are created when larger galaxies are punctured by a smaller galactic aggressor, which, passing through the heart of its more sizeable victim, triggers a shock wave that spreads outwards. This pushes gas to the galaxy’s periphery, where it begins to collapse and form new stars. The Vela ring galaxy is unusual in that it actually exhibits at least two rings, suggesting that the collision was not a recent one.
This picture also features a galaxy known as ESO 316-33, seen just above and to the left of the Vela ring galaxy, and a bright star known as HD 88170.
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تحت شرایط زیر:
انتساب – شما باید اعتبار مربوطه را به دست آورید، پیوندی به مجوز ارائه دهید و نشان دهید که آیا تغییرات ایجاد شدهاند یا خیر. شما ممکن است این کار را به هر روش منطقی انجام دهید، اما نه به هر شیوهای که پیشنهاد میکند که مجوزدهنده از شما یا استفادهتان حمایت کند.
https://creativecommons.org/licenses/by/4.0CC BY 4.0 Creative Commons Attribution 4.0 truetrue
این پرونده حاوی اطلاعات اضافهایاست که احتمالاً دوربین دیجیتال یا پویشگری که در ایجاد یا دیجیتالیکردن آن به کار رفته آن را افزوده است. اگر پرونده از وضعیت ابتداییاش تغییر داده شده باشد آنگاه ممکن است شرح و تفصیلات موجود اطلاعات تصویر را تماماً بازتاب ندهد.
صاحب امتیاز/ارائه کننده
ESO. Acknowledgements: Jean-Christophe Lambry
منبع
European Southern Observatory
عنوان کوتاه
A cosmic hit and run
عنوان تصویر
This Picture of the Week shows the Vela ring galaxy, visible as a bright core surrounded by a baby blue halo. This ring galaxy— located in the southern constellation of Antlia (The Pump) — is notable due to its compact core and large circular belt of gas and stars. It is thought that ring galaxies like this are created when larger galaxies are punctured by a smaller galactic aggressor, which, passing through the heartof its more sizeable victim, triggers a shock wave that spreads outwards. This pushes gas to the galaxy’s periphery, where it begins to collapse and form new stars. The Vela ring galaxy is unusual in that it actually exhibits at least two rings, suggesting that the collision was not a recent one.This picture also features a galaxy known as ESO 316-33, seen just above and to the left of the Vela ring galaxy, and a bright star known as HD 88170.
شرایط استفاده
Creative Commons Attribution 4.0 International License
تاریخ و زمان تولید دادهها
۹ مهٔ ۲۰۱۶، ساعت ۰۶:۰۰
توضیحات پرونده JPEG
This Picture of the Week shows the Vela ring galaxy, visible as a bright core surrounded by a baby blue halo. As the name suggests, this ring galaxy — located in the southern constellation of Vela (The Sails) — is notable due to its compact core and large circular belt of gas and stars. It is thought that ring galaxies like this are created when larger galaxies are punctured by a smaller galactic aggressor, which, passing through the heart of its more sizeable victim, triggers a shock wave that spreads outwards. This pushes gas to the galaxy’s periphery, where it begins to collapse and form new stars. The Vela ring galaxy is unusual in that it actually exhibits at least two rings, suggesting that the collision was not a recent one. This picture also features a galaxy known as ESO 316-33, seen just above and to the left of the Vela ring galaxy, and a bright star known as HD 88170.