1. The Cosmic X-Ray Background
... Astronomy Picture of the Day . The Cosmic X-Ray Background . << Yesterday . 9.11.2000 . Tomorrow >> . ... and that, from across the universe , x-rays produced as matter feeds these black holes account for the cosmic x-ray background ...
2. APOD: 2000 November 9 - The Cosmic X-Ray Background
... 2000 November 9 . The Cosmic X-Ray Background . Credit: G. Hasinger ( AIP ) et al., XMM-Newton , ESA . ... and that, from across the universe , x-rays produced as matter feeds these black holes account for the cosmic x-ray background ...
6. http://hea.iki.rssi.ru/ru/Posters/INTEGRAL_2007_ridge.pdf
... Milky Way X-ray background emission « »: , . «» , 30- . ... Resent studies of Galactic X-ray background by efforts of Russian scientists (IKI ... Map of Galactic background emission in hard X-ray energy band obtained with INTEGRAL ...
7. STScI Preprint #1342
... Compton Heating of the Intergalactic Medium by the Hard X-Ray Background. ... the intergalactic gas by the hard X-ray background (XRB), an effect neglected in all ... background at a given epoch, where x is the hydrogen neutral fraction in units of 10 ...
10. http://xmm.vilspa.esa.es/scisim/release/latest/help/postscript/csim.ps
... 5 4.2 Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4.2.1 X-ray Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4.2.2 Optical Sky Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5 Source Properties 6 5.1 Source Position . ...