Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...333..540h&link_type=abstract
Astronomy and Astrophysics, v.333, p.540-546 (1998)
Astronomy and Astrophysics
Astrophysics
15
Stars: Individual: Ms1603+2600, Stars: Binaries, Close, Accretion
Scientific paper
We present results from ~ 2 years of optical monitoring of an unusual interacting compact binary MS1603+2600 together with the results of ROSAT observations. Our CCD-photometry confirms the erratic behaviour of the optical light curve shape reported by Morris et al. (1990). The ROSAT-PSPC observations suggest that MS1603 might be a short period soft X-ray transient (SXT) never seen in outburst. This would probably require, that the compact object in MS1603 is a black hole rather than a neutron star. In addition to optical photometry and ROSAT data, we present first circular polarimetric observations of the source and discuss the nature and origin of MS1603+2600. Based on optical observations made at the Nordic Optical Telescope, La Palma
Chaytor D. H.
Hakala P. J.
Morris Simon L.
Muhli Panu
Piirola Vilppu
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