Изображение:Chandra-crab.jpg
Материал из Википедии — свободной энциклопедии
| Cведения об этом файле находятся на Викискладе, — хранилище изображений и мультимедиа для использования в проектах фонда Викимедиа. |
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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 NASA and the European Space Agency. Hubble material is copyright-free and may be freely used as in the public domain without fee, on the condition that NASA and ESA is credited as the source of the material. The material was created for NASA by STScI under Contract NAS5-26555 and for ESA by the Hubble European Space Agency Information Centre. [1] or [2]. |
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source: http://hubblesite.org/newscenter/newsdesk/archive/releases/2002/24/image/a
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