File:Hubble revisits tangled NGC 6240.jpg
![File:Hubble revisits tangled NGC 6240.jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/f/f9/Hubble_revisits_tangled_NGC_6240.jpg/600px-Hubble_revisits_tangled_NGC_6240.jpg)
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摘要
描述Hubble revisits tangled NGC 6240.jpg |
English: Not all galaxies are neatly shaped, as this new NASA/ESA Hubble Space Telescope image of NGC 6240 clearly demonstrates. Hubble previously released an image of this galaxy back in 2008, but the knotted region, shown here in a pinky-red hue at the centre of the galaxies, was only revealed in these new observations from Hubble’s Wide Field Camera 3 and Advanced Camera for Surveys.
NGC 6240 lies 400 million light-years away in the constellation of Ophiuchus (The Serpent Holder). This galaxy has an elongated shape with branching wisps, loops and tails. This mess of gas, dust and stars bears more than a passing resemblance to a butterfly and, though perhaps less conventionally beautiful, a lobster. This bizarrely-shaped galaxy did not begin its life looking like this; its distorted appearance is a result of a galactic merger that occurred when two galaxies drifted too close to one another. This merger sparked bursts of new star formation and triggered many hot young stars to explode as supernovae. A new supernova was discovered in this galaxy in 2013, named SN 2013dc. It is not visible in this image, but its location is indicated here. At the centre of NGC 6240 an even more interesting phenomenon is taking place. When the two galaxies came together, their central black holes did so too. There are two supermassive black holes within this jumble, spiralling closer and closer to one another. They are currently only some 3000 light-years apart, incredibly close given that the galaxy itself spans 300 000 light-years. This proximity secures their fate as they are now too close to escape each other and will soon form a single immense black hole. |
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來源 | http://www.spacetelescope.org/images/potw1520a/ |
作者 | NASA, ESA, the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration, and A. Evans (University of Virginia, Charlottesville/NRAO/Stony Brook University) |
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ESA/Hubble images, videos and web texts are released by the ESA under the Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the ESA copyright statement for full information. For images created by NASA or on the hubblesite.org website, or for ESA/Hubble images on the esahubble.org site before 2009, use the {{PD-Hubble}} tag.
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描繪內容
18 5 2015
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目前 | 2015年6月9日 (二) 20:16 | ![]() | 3,468 × 3,468(4.41 MB) | Szczureq | larger |
2015年6月8日 (一) 15:29 | ![]() | 1,280 × 1,280(200 KB) | Jmencisom | User created page with UploadWizard |
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製作/提供者 | NASA, ESA, the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration, and A. Evans (University of Virginia, Charlottesville/NRAO/Stony Brook University) |
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來源 | ESA/Hubble |
使用條款 |
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影像標題 |
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資料產生的日期時間 | 2015年5月18日 (一) 10:00 |
使用軟體 | Adobe Photoshop CS6 (Windows) |
版權狀態 | 版權狀態不明 |
原始文件唯一識別碼 | uuid:DF825884E5FCDC11BCEFCD73B1DE888E |
關鍵字 | NGC 6240 |
聯絡資訊 |
http://www.spacetelescope.org/ Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
IIM 版本 | 4 |