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Mass loss effects in the spectrum of the O 6.5f binary HD 153919

Published online by Cambridge University Press:  14 August 2015

G. Hammerschlag-Hensberge
G. Hammerschlag-Hensberge*
Affiliation:
Astronomical Institute, University of Amsterdam

Abstract

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Apart from the known P-Cygni profiles of Hβ, HeI 5876, 4471 in the spectrum of HD 153919, also HeII 3923 and a line at 3759 A which is tentatively identified as OIII show an emission component. These lines indicate that the Of star is losing mass at a high rate. A detailed analysis of the radial velocities obtained from 76 spectrograms indicates that the outflow of the wind is not spherically symmetric: at the side where the Of star faces its companion the velocity of the wind has increased.

Type
Session 1: Optical Spectroscopy
Information
Symposium - International Astronomical Union , Volume 83: Mass Loss and Evolution of O-Type Stars , 1979 , pp. 31 - 34
Copyright
Copyright © Reidel 1979 

References

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