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WR 148 and the not so compact companion

Published online by Cambridge University Press:  28 July 2017

Melissa Munoz
Affiliation:
Université de Montréal
Anthony J. Moffat
Affiliation:
Université de Montréal
Grant M. Hill
Affiliation:
W. M. Keck Observatory
Tomer Shenar
Affiliation:
Institut fürr Physik und Astronomie
Noel D. Richardson
Affiliation:
University of Toledo
Herbert Pablo
Affiliation:
Institut fürr Physik und Astronomie
Nicole St-Louis
Affiliation:
Université de Montréal
Tahina Ramiaramanantsoa
Affiliation:
Université de Montréal
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Abstract

The objective is to determine the nature of the unseen companion of the single-lined spectroscopic binary, WR 148 (= WN7h+?). The absence of companion lines supports a compact companion (cc) scenario. The lack of hard X-rays favours a non-compact companion scenario. Is WR 148 a commonplace WR+OB binary or a rare WR+cc binary?

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2017 

References

Drissen, L., Lamontagne, R., Moffat, A. F. J., Bastien, P., & Seguin, M., 1986, ApJ, 304, 188 CrossRefGoogle Scholar
Marchenko, S. V., Moffat, A. F. J., Lamontagne, R., & Tovmassian, G. H., 1996, ApJ, 461, 386 CrossRefGoogle Scholar
Martins, F., Schaerer, D., & Hillier, D. J., 2003, A&A, 436, 1049 Google ScholarPubMed
Wolinski, K. G. & Dolan, J. F., 1994, MNRAS, 267, 5 CrossRefGoogle Scholar
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