X-ray sources and their induced surrounding clouds

Details X-ray sources and their induced surrounding clouds X-ray sources and their induced surrounding clouds

May 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979a%26a....75..133c&link_type=abstract

Astronomy and Astrophysics, vol. 75, no. 1-2, May 1979, p. 133-136. Research supported by the National Research Council of Cana

Astronomy and Astrophysics

Astrophysics

4

Interstellar Gas, Stellar Mass Accretion, X Ray Sources, Electron Scattering, Gas Pressure, Optical Thickness

Scientific paper

In this paper a statistically steady accretion flow onto a compact object, wherein a cool, optically thick cloud forms naturally above the choke radius produced by Compton heating, is proposed. The electron scattering optical depth and the radius of the cloud, together with the radiation temperature of the central source are estimated in terms of the observed cloud temperature and simple model parameters. The cloud is actually a thick radiative shock front, for the material is supersonic beyond its outer boundary, being well inside the likely Bondi radius.

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