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x-ray background |
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x-ray background [′eks ‚rā ′bak‚grau̇nd] (astronomy) Diffuse, almost isotropic x-radiation from beyond the solar system, believed to be the summed contribution of many unresolved sources. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| 266), and Giacconi still uses data from the orbiting Chandra X-ray Observatory to study sources that make up the X-ray background. An astronomer with a long history and expertise in deep surveys, Giacconi was the principal investigator of the program which discovered the first X-ray stars and the X-ray background in the 1960s and conceived of and led the implementation of the Uhuru and Einstein X-ray Observatories in the 1970s. The source of X-ray background is "just the sort of thing one hoped Chandra would discover," comments astronomer Roger D. |
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