Luminosity dependence of the hardness of the 13-80 keV X-ray spectra of low-mass X-ray binaries

Details Luminosity dependence of the hardness of the 13-80 keV X-ray spectra of low-mass X-ray binaries Luminosity dependence of the hardness of the 13-80 keV X-ray spectra of low-mass X-ray binaries

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...281l..17v&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 281, no. 1, p. L17-L20

Astronomy and Astrophysics

Astronomy

43

Black Holes (Astronomy), Neutron Stars, Stellar Luminosity, X Ray Astronomy, X Ray Binaries, X Ray Spectra, Astronomical Catalogs, Emission Spectra, Heao 1, Stellar Mass, X Ray Spectroscopy

Scientific paper

Following the recent detection by the Granat/Sigma group of hard power-law components in the 35-200 keV spectra of some low-luminosity X-ray bursters we have investigated the relation for non-pulsating low-mass X-ray binaries between the X-ray luminosity and the spectral hardness in the 13-80 keV band using the HEAO-1 A4 catalog. We find that these quantities show a global correlation over a range of more than two orders of magnitude in luminosity.

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