Limits on soft X-ray flux from distant emission regions

Details Limits on soft X-ray flux from distant emission regions Limits on soft X-ray flux from distant emission regions

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...287..208b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 287, Dec. 1, 1984, p. 208-218. Previously announced in STAR as N84-26558.

Astronomy and Astrophysics

Astrophysics

24

Background Radiation, Cosmic X Rays, Galactic Radiation, Interstellar Gas, Milky Way Galaxy, X Ray Sources, Centimeter Waves, Emission, Halos, Latitude, Neutral Gases, X Ray Absorption

Scientific paper

The all-sky soft X-ray data of McCammon et al., and the new NH survey (Stark et al.) was used to place limits on the amount of the soft X-ray diffuse background that can originate beyond the neutral gas of the galactic disk. The X-ray data for two regions of the sky near the galactic poles are shown to be uncorrelated with 21 cm column densities. Most of the observed X-ray flux must therefore originate on the near side of the most distant neutral gas. The results from these regions are consistent with X-ray emission from a locally isotropic, unabsorbed source, but require large variations in the emission of the local region over large angular scales.

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