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Publications of the Astronomical Society of Australia Publications of the Astronomical Society of Australia

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Comparison of the X-Ray Sources CIR X-1. GX301-2 and 2S0535-668

Published online by Cambridge University Press:  25 April 2016

M. L. Duldig ,
R. M. Thomas  and
R. F. Haynes
M. L. Duldig
Affiliation:
Physics Department, University of Tasmania
R. M. Thomas
Affiliation:
Defence Research Est., Salisbury
R. F. Haynes
Affiliation:
Div. of Radiophysics CSIRO
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Extract

There is reasonably strong evidence to suggest that the periodic X-ray, radio and optical variable Cir X-1 is a highly eccentric orbit (e ~ 0.8), binary system comprising an OB supergiant primary and a compact object, probably a neutron star (Whelan et al. 1977; Haynes, Lerche and Murdin 1980).

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Contributions
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Publications of the Astronomical Society of Australia , Volume 4 , Issue 1 , 1980 , pp. 108 - 111
Copyright
Copyright © Astronomical Society of Australia 1980

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References

Duldig, M. L., Greenhill, J. G., Thomas, R. M., Haynes, R. F., Simons, L. W. J., and Murdin, P. G., Mon. Not. Roy. Astron. Soc, 187, 567 (1979).CrossRefGoogle Scholar
Haynes, R. F., Caswell, J. L., Simons, L. W. J., Aust. J. Phys. Astrophys. Suppl. No. 45 (1978).Google Scholar
Haynes, R. F., Lerche, I. Murdin, P. G., Astron. Astrophys. in press (1980).Google Scholar
Johnston, M. D., Griffiths, R. E., Ward, M. J., M.I.T. preprint CSR-HEA-79-57 (1979).Google Scholar
Kelley, R., Rappaport, S., Petre, R., M.I.T. preprint CSR-HEA-79034 (1979).Google Scholar
McGee, R. X., and Newton, Lynette M. Aust. J. Phys. 25, 619 (1973).CrossRefGoogle Scholar
Seaquist, E. R., Astrophys. J., 211, 547 (1977).CrossRefGoogle Scholar
Thomas, R. M., Morton, D. C., Murdin, P. G., Mon. Not. Roy. Astron. Soc. 188, 19 (1979).CrossRefGoogle Scholar
Vidal, N. V., Astrophys J., 186, L81 (1973).CrossRefGoogle Scholar
Whelan, J. A. J. et al., Mon. Not. Roy. Astron. Soc, 181, 259 (1977).CrossRefGoogle Scholar

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