The anisotropy of the diffuse cosmic X-ray background

Details The anisotropy of the diffuse cosmic X-ray background The anisotropy of the diffuse cosmic X-ray background

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984chjss...4q.253x&link_type=abstract

(Chinese Journal of Space Sciences, vol. 4, no. 3, 1984, p. 253-256) Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 8

Statistics

Computation

Background Radiation, Cosmic X Rays, Diffuse Radiation, Computational Astrophysics, Galactic Cosmic Rays, Heao 1, Microwaves

Scientific paper

The anisotropy of the cosmic X-ray background (CXB) is investigated, subtracting model predictions of the Galactic contribution from 2-60-keV data obtained with HEAO-1 A2. Both the diffuse Galactic X-rays and the Compton-Getting anisotropy due to the sun's motion relative the the CXB (resulting in a more intense Galactic component in the northern Galactic hemisphere) are taken into account, and the degree of anisotropy is estimated as delta = (0.45 + or - 0.18) percent with velocity 397 + or - 159 km/s. These findings are shown to be consistent with the velocity determined by Hart and Davies (1982) from microwave and H I data and the delta value obtained by Protheroe et al. (1980) from Uhuru 2-7-keV X-ray measurements.

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