The X-ray spectral properties of the bulge of M31

Details The X-ray spectral properties of the bulge of M31 The X-ray spectral properties of the bulge of M31

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...316..127f&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 316, May 1, 1987, p. 127-131. CNR-supported research.

Astronomy and Astrophysics

Astronomy

33

Andromeda Galaxy, Galactic Structure, X Ray Binaries, X Ray Spectra, Spaceborne Astronomy, Spectrum Analysis

Scientific paper

The results of a spectral analysis of the Einstein observations of the bulge of M31 are reported. The data can be fitted with a hard thermal spectrum with characteristic temperature kT of about 6-13 keV (at 90 percent confidence). No intrinsic absorption above the galactic value of N(H) is required. These results are in agreement with the presence in the bulge of M31 of a population of low-mass binary sources similar to those of the Milky Way.

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