Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977mnras.181p..73d&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 181, Dec. 1977, p. 73P-79P. Research supported by the Science Research
Astronomy and Astrophysics
Astronomy
23
Binary Stars, Companion Stars, Pulsars, X Ray Sources, Ariel Satellites, Latitude Measurement, Light Curve, Oso, Radial Velocity, Stellar Winds, Supergiant Stars, X Ray Spectroscopy
Scientific paper
Ariel 5 SSI and Experiment C observations of 3U 1538-52 are presented which confirm the binary nature of this source and resolve its positional uncertainty. Combining Ariel 5 data with that from OSO-8 leads to improve estimates of the orbital parameters which are discussed in terms of the implications for the mass and radius of the as yet unidentified companion star.
Davison J. N. P.
Pye John P.
Watson Michael G.
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