Broad-band X-ray observations of Cir X-1

We present broad-band (2–88 keV) X-ray observations of the X-ray binary Cir X-1 with the TTM and HEXE instruments on board of the Mir space station. The observations were made in January/February 1989. The spectrum is best described by a model with 3 components: a blackbody at low energies, an iron...

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Bibliographic Details
Published in:Advances in space research 1995-01, Vol.16 (3), p.91-94
Main Authors: Maisack, M., Staubert, R., Balucinska-Church, M., Skinner, G., Döbereiner, S., Englhauser, J., Arefev, V.A., Efremov, V.V., Sunyaev, R.A.
Format: Article
Language:English
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Summary:We present broad-band (2–88 keV) X-ray observations of the X-ray binary Cir X-1 with the TTM and HEXE instruments on board of the Mir space station. The observations were made in January/February 1989. The spectrum is best described by a model with 3 components: a blackbody at low energies, an iron line and a Comptonised hard continuum. The spectrum is variable during our observations; when the Comptonised component becomes harder, the spectrum becomes softer below 15 keV. The high-energy spectrum resembles that of X-ray binary pulsars.
ISSN:0273-1177
1879-1948
DOI:10.1016/0273-1177(95)00051-F