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The Spectrum of Smc X-1

Published online by Cambridge University Press:  25 April 2016

B. A. Peterson  and
N. V. Vidal
B. A. Peterson
Affiliation:
Mt Stromlo and Siding Spring Observatory, Research School of Physical Sciences, Australian National University
N. V. Vidal
Affiliation:
Mt Stromlo and Siding Spring Observatory, Research School of Physical Sciences, Australian National University
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Extract

The variable X-ray source in the direction of the Small Magellanic Cloud (SMC), SMC X-1 (2U 0115-73) was discovered by Leong et al. (1971). X-ray eclipses with a period of 3.8927 ± 0.0010 days were subsequently reported by Schreier et al. (1972). Identification of the X-ray source with SK 160, star number 160 in the list of Sanduleak (1968), was proposed by Webster et al. (1972) on the basis of the similarity of its spectrum with that of the optical counterpart of Cyg X-1.

Type
X-Ray Astronomy
Information
Publications of the Astronomical Society of Australia , Volume 2 , Issue 5 , September 1974 , pp. 286 - 289
Copyright
Copyright © Astronomical Society of Australia 1974

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