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A Two-Temperature Model for LBVs

Published online by Cambridge University Press:  03 June 2005

J. H. Guo ,
Y. Li  and
H. G. Shan
J. H. Guo
Affiliation:
National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, China email: [email protected] Graduate School of Chinese Academy of Sciences
Y. Li
Affiliation:
National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, China email: [email protected]
H. G. Shan
Affiliation:
National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, China email: [email protected]
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Abstract

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The continuum energy distributions of R127 and R110 in the outburst phase are fitted by use of a optically envelope model. Both stars show two peaks in the continuum energy distributions in which one lies in the short-wavelength range (near 1250Å) and the other in the optical band. We suggest that the fluxes in the UV and optical bands may have different origins: the UV flux comes from the central star and the optical flux comes from the expanded optically envelope. We construct such a model for LBVs with the use of two LTE atmosphere models with different temperatures, and find it to be in satisfactory agreement with the observed spectral energy distributions of R127 and R110.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Keywords

stars: mass lossvariables: other
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUS226 , September 2004 , pp. 506 - 510
Copyright
© 2005 International Astronomical Union