Hostname: page-component-848d4c4894-2xdlg Total loading time: 0 Render date: 2024-07-03T23:01:18.825Z Has data issue: false hasContentIssue false

Be Binaries with Warm Dust and Exotic High-Luminosity A–F Emission-Line Stars

Published online by Cambridge University Press:  12 April 2016

Anatoly S. Miroshnichenko
Affiliation:
Ritter Observatory, Dept. of Physics & Astronomy, University of Toledo, Toledo, OH 43606, USA
Karen S. Bjorkman
Affiliation:
Ritter Observatory, Dept. of Physics & Astronomy, University of Toledo, Toledo, OH 43606, USA
Valentina G. Klochkova
Affiliation:
Special Astrophysical Observatory of the Russian Academy of Sciences, Karachai-Chircassian Republic, Nizhnij Arkhyz, 369167, Russia
Eugene L. Chentsov
Affiliation:
Special Astrophysical Observatory of the Russian Academy of Sciences, Karachai-Chircassian Republic, Nizhnij Arkhyz, 369167, Russia

Abstract

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.

We present the results of photometric and high-resolution spectroscopic studies of a group of B[e] stars (Be stars with warm dust or B[e]Ds) and of two cooler objects with extremely high luminosities (HDE 331319 and IRC+10420). The B[e]Ds is a growing group of objects with very strong emission-line spectra, some of which show direct evidence of the presence of a hot and a cool star in the system. Their basic properties and connection to other groups of binaries are discussed, and a new list of members is presented. Fundamental parameters and chemical composition of an unusual F-supergiant HDE 331319 and recent results on a fast evolving object IRC+10420 are also reported.

Type
Research Article
Copyright
Copyright © Astronomical Society of the Pacific 2002

References

Allen, D.A., & Swings, J.-P. 1976, A&A, 47, 293 Google Scholar
Carlson, E.D., & Henize, K.G. 1979, Vistas Ast., 23, 213 CrossRefGoogle Scholar
Dong, Y.S., & Hu, J.Y. 1991, Chin. Astr. Astrophys., 15, 275 CrossRefGoogle Scholar
Gledhill, T.M., et al. 2001, MNRAS, 322, 321 CrossRefGoogle Scholar
Klochkova, V.G., Panchuk, V.E., & Tavolzhanskaya, N.S. 2002, Ast. Lett., 28, 49 Google Scholar
Klochkova, V.G., et al. 2002, Ast. Rep., 46, 139 CrossRefGoogle Scholar
Lamers, H.J.G.L.M., et al. 1998, A&A, 340, 117 Google Scholar
Lopes, D.F., Dammeli Neto, A., & de Freitas Pacheco, J.A. 1992, A&A, 261, 482 Google Scholar
Likkel, L., et al. 1991, A&A, 246, 153 Google Scholar
Miroshnichenko, A.S., et al. 2000, A&AS, 144, 5 Google Scholar
Miroshnichenko, A.S., et al. 2001, A&A, 371, 600 Google Scholar
Miroshnichenko, A.S., et al. 2002, A&A, 383, 171 Google Scholar
Neckel, Th., & Klare, G. 1980, A&AS, 42, 251 Google Scholar
Oudmaijer, R.D. 1998, A&AS, 129, 541 Google Scholar
Reig, P., Fabregat, J., & Coe, M.J. 1997, A&A, 322, 193 Google Scholar
Sheikina, T.A., Miroshnichenko, A.S., & Corporon, P. 2000, In ASP Conf. Ser. Vol. 214, The Be-Phenomenon in Early-Type Stars, ed. Smith, M.A., F. Hendrichs, H., & Fabregat, J. (San Francisco: ASP), 494 Google Scholar
Voors, R.H.M. 1999, Ph. D. Thesis, Universiteit Utrecht, The Netherlands Google Scholar
Wolf, B., & Stahl, O. 1985, A&A, 148, 412 Google Scholar
Zickgraf, F.-J. 2001, A&A, 375, 122 Google Scholar