Hostname: page-component-848d4c4894-sjtt6 Total loading time: 0 Render date: 2024-06-16T09:03:56.707Z Has data issue: false hasContentIssue false
  • English
  • Français

Slash stars: Two types, two scenarios?

Published online by Cambridge University Press:  12 April 2016

P. S. Conti  and
Bruce Bohannan
P. S. Conti
Affiliation:
Joint Institute for Laboratory AstrophysicsAstrophysical, Planetary and Atmospheric SciencesUniversity of Colorado, Boulder, Colorado, U.S.A.
Bruce Bohannan
Affiliation:
Joint Institute for Laboratory AstrophysicsAstrophysical, Planetary and Atmospheric SciencesUniversity of Colorado, Boulder, Colorado, U.S.A.

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Of/WN, or as we will call them here, “slash ‘/’” stars were first described by Walborn (1977; 1982a; 1982b) as hot luminous stars that have spectroscopic properties of both O and low-ionization WN spectral classes. Walborn called attention to Sk -67° 22, an 03IP7WN6-A star that had strong O-type absorption lines, but also a broad emission feature at Hell λ4686Å. The ‘/’ symbol was used to indicate that there was difficulty in assigning either the Of or the WN type unambiguously. He labled other LMC stars as Ofpe/WN9 not only because of a similar ambiguity in the classification but also the presence of narrow “nebular” emission lines associated with the star. Conti and Garmany (1983) pointed out the similarity of Sk -71° 34 to Sk -67° 22. A total of ten stars with Ofpe/WN9 character have now been identified in the LMC (Bohannan and Walborn 1989) : HDE 269927C, 269445, 269582, 269687, 269858, 269227; Sk -66 040, -67 266, -69 297; BE 381.

Type
Section II: Poster Papers, A Brief List of Catalogs, and Index
Information
International Astronomical Union Colloquium , Volume 113: Physics of Luminous Blue Variables , 1989 , pp. 297 - 298
Copyright
Copyright © Kluwer 1989

References

Bohannan, B. and Walborn, N.R. 1989 submitted to Ap.J.Google Scholar
Conti, P.S. 1976 in Proc. 20th. Colloq. Int. Ap. Liege, p. 193.Google Scholar
Conti, P.S., Garmany, C.D., and Hutchings, J.B. 1977, Ap.J. 215, 561.Google Scholar
Conti, P.S., Niemela, V.S., and Walborn, N.R. 1979 Ap.J. 228, 206.Google Scholar
Conti, P.S. and Garmany, C.D. 1983 Pub. Astron. Soc. Pac. 95, 411.Google Scholar
Conti, P.S. and Massey, P. 1989 Ap.J. in press.Google Scholar
Hutchings, J.B. 1979 Pub. Astron. Soc. Pac. 91, 361.Google Scholar
Leep, E.M. 1979, in Mass Loss and Evolution ofO-Type Stars (IAU Symp. No.83), eds. Conti, P.S. and DeLoore, C.W.H. (Dordrecht:D. Reidel), p. 471.Google Scholar
McGregor, P.J., Hillier, D.J., and Hyland, A.R. 1989 submitted to Ap.J.Google Scholar
Stahl, O., Wolf, B., Klare, G., Cassatella, A., Krautter, J., Persi, P., Ferrari-Toniolo, M. 1983, Astron. & Astrophys. 127, 49.Google Scholar
Voels, S.A., Bohannan, B., Abbott, D., Hummer, D.G. 1989 Ap.J., in press.Google Scholar
Walborn, N.R. 1977 Ap.J. 215, 53.Google Scholar
Walborn, N.R. 1982a Ap.J. Letters 254, L15.Google Scholar
Walborn, N.R. 1982b Ap.J. 256, 452.CrossRefGoogle Scholar
Wolf, B. Stahl, O., Smolinskik, J., and Cassatella, A. 1988 Astr. Ap. Suppl., 74, 239.Google Scholar