Image:Chandra-crab.jpg
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This is a file from the Wikimedia Commons. The description on its description page there is shown below. |
A composite image of the Crab Nebula showing the X-ray (blue), and optical (red) images superimposed. The size of the X-ray image is smaller because the higher energy X-ray emitting electrons radiate away their energy more quickly than the lower energy optically emitting electrons as they move.
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This file is in the public domain because it was created by the European Space Agency and NASA. Hubble material is copyright-free and may be freely used as in the public domain without fee, on the condition that ESA and NASA is credited as the source of the material. The material was created for ESA by the Hubble European Space Agency Information Centre and for NASA by STScI under Contract NAS5-26555. or . |
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source: http://hubblesite.org/newscenter/newsdesk/archive/releases/2002/24/image/a
File history
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 16:54, 24 July 2005 | 2,400×2,400 (314 KB) | Julo | (A composite image of the Crab Nebula showing the X-ray (blue), and optical (red) images superimposed. The size of the X-ray image is smaller because the higher energy X-ray emitting electrons radiate away their energy more quickly than the lower energy op) |
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