SIMBAD references

1998ApJ...509..203P - Astrophys. J., 509, 203-211 (1998/December-2)

Evidence for the galactic X-ray bulge. II.


Abstract (from CDS):

A mosaic of five ROSAT PSPC-pointed observations in the Galactic plane (l ∼ 25°) reveals X-ray shadows in the 0.5-2.0 keV band cast by distant molecular clouds. The observed on-cloud and off-cloud X-ray fluxes indicate that ∼15% and ∼37% of the diffuse X-ray background in this direction in the 3/4 and 1.5 keV bands, respectively, originates behind the molecular gas that is located at ∼3 kpc from the Sun. The implication of the derived background X-ray flux beyond the absorbing molecular cloud is consistent with, and lends further support to, recent observations of a Galactic X-ray bulge.

Abstract Copyright:

Journal keyword(s): Cosmology: Diffuse Radiation - Galaxy: Structure - ISM: Clouds - ISM: Structure - X-Rays: ISM

Simbad objects: 3

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