Large-scale distribution of galactic X-ray sources

Details Large-scale distribution of galactic X-ray sources Large-scale distribution of galactic X-ray sources

Apr 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...229..669r&link_type=abstract

Astrophysical Journal, Part 1, vol. 229, Apr. 15, 1979, p. 669-678.

Astronomy and Astrophysics

Astrophysics

10

Early Stars, Galactic Radiation, Interstellar Gas, Stellar Structure, X Ray Sources, Density Distribution, Latitude, Longitude Measurement, Statistical Distributions, Stellar Luminosity, X Ray Irradiation

Scientific paper

A simple model is presented which accounts satisfactorily for the observed number-intensity, longitudinal, and latitudinal distributions of galactic X-ray sources (GXRSs) and the diffuse X-ray emission of the galactic disk. The model is based on the assumptions that: (1) most GXRSs contain an extreme Population I object; (2) the birthrate of GXRSs is related to the gas density prevailing at their birthplaces; (3) intrinsically weak sources might be abundant but are currently unresolved; and (4) most GXRSs are runaway systems with an average runaway velocity of the order of 100 km/s. The results obtained suggest that the scale height of binary X-ray sources might depend on galactocentric distance.

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