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Is HD 164270 a Long-Period Eclipsing Binary?

Published online by Cambridge University Press:  14 August 2015

Ingemar Lundström  and
Björn Stenholm
Ingemar Lundström
Affiliation:
Lund Observatory, Box 1107, S-221 04 Lund, Sweden
Björn Stenholm
Affiliation:
Lund Observatory, Box 1107, S-221 04 Lund, Sweden

Extract

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The WC star HD 164270 (=WR 103 in the catalogue by van der Hucht et al., 1981) is one of the stars to which Smith (1968) ascribed variability, although she was not able to investigate the light variations completely. The star has been regarded as a single star (i.e. no evidence of absorption lines) but it has been proposed by e.g. van den Heuvel (1976) that “single” WR stars might have collapsed companions. Eclipses by such short-period companions should be observable. Thus we designed an observational programme to look for hitherto unobserved companions. The programme contained 16 “single” WR stars. Some of them, including WR 103, had previously shown light variations as mentioned.

Type
SESSION 4 — OBSERVATIONS OF WOLF-RAYET BINARIES
Information
Symposium - International Astronomical Union , Volume 99: Wolf-Rayet Stars: Observations, Physics, Evolution , 1982 , pp. 289 - 293
Copyright
Copyright © Reidel 1982 

References

van der Heuvel, E.P.J.: 1976, IAU Symp. No. 73, p. 35.CrossRefGoogle Scholar
Hjellming, R.M. and Hiltner, W.A.: 1963, Astrophys. J. 137, 1080.Google Scholar
van der Hucht, K.A., Conti, P.S., Lundström, I., Stenholm, B.: 1981, Sp. Sci. Rev. 28, 227.Google Scholar
Isserstedt, J. and Moffat, A.F.J.: 1981, Astron. Astrophys. 96, 133.Google Scholar
Smith, L.F.: 1968, Monthly Notices Roy. Astron. Soc. 140, 409.Google Scholar