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The Infrared Recombination-Line Spectra of Wolf-Rayet Stars

Published online by Cambridge University Press:  14 August 2015

D. G. Hummer ,
M. J. Barlow  and
P. J. Storey
D. G. Hummer
Affiliation:
Joint Institute for Laboratory Astrophysics, University of Colorado and National Bureau of Standards, Boulder, Colorado 80309
M. J. Barlow
Affiliation:
Department of Physics and Astronomy, University College London, London WC1E 6BT England
P. J. Storey
Affiliation:
Department of Physics and Astronomy, University College London, London WC1E 6BT England

Abstract

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Effective recombination coefficients have recently been calculated for recombination lines of He I, He II and C IV (among other ions with up to three electrons) for densities and temperatures appropriate for Wolf-Rayet atmospheres. These have been applied to recently obtained infrared spectra of γ Vel in order to derive the He+/He+2 and C+4/He+ + He+2 ratios.

Type
SESSION 1 — THE WOLF-RAYET PHENOMENON
Information
Symposium - International Astronomical Union , Volume 99: Wolf-Rayet Stars: Observations, Physics, Evolution , 1982 , pp. 79 - 83
Copyright
Copyright © Reidel 1982 

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