Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...263..241h&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 263, no. 1-2, p. 241-248.
Astronomy and Astrophysics
Astronomy
16
Ginga Satellite, Neutron Stars, Stellar Spectra, Supergiant Stars, X Ray Binaries, Spaceborne Astronomy, Stellar Luminosity, Stellar Mass Accretion, Stellar Winds, X Ray Spectra
Scientific paper
A Ginga observation of the massive X-ray binary system 4U 1700-37/HD 153919 in April 1990 revealed a strong soft component in the X-ray spectra consistent with thermal bremsstrahlung of temperature 0.5 keV, with an average luminosity of 8 x 10 exp 34 erg/s. The soft component might be explained by emission from a region of X-ray-induced shocks trailing the X-ray source. The soft component is also visible in eclipse spectra from an Exosat observation in 1985, but with a factor of about five lower luminosity compared with the Ginga spectra around eclipse ingress. The increase in luminosity of the soft component might be correlated with the increase in overall absorption and luminosity of the direct spectral component by a factor of about two observed since 1985, indicating an increase in the stellar wind density caused by a factor of about two higher mass loss rate of HD 153919.
Day Charles S. R.
Haberl Franck
No associations
LandOfFree
A GINGA observation of the supergiant X-ray binary system 4U 1700-37/HD 153919 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A GINGA observation of the supergiant X-ray binary system 4U 1700-37/HD 153919, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A GINGA observation of the supergiant X-ray binary system 4U 1700-37/HD 153919 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1761713