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出典:Wikipedia
出典:『Wikipedia』 (2011/07/25 07:16 UTC 版)
The diffuse X-ray background is rather consistently observed over the energy range from the lowest energies, 0.1 - 0.3 keV, upwards to 1 MeV. In addition to discrete astronomical X-ray sources which stand out against the sky, there is good evidence for a diffuse X-ray background.
Diffuse X-ray background