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Stellar Winds in A-Type Supergiants

Published online by Cambridge University Press:  12 April 2016

A. Talavera  and
A.I. Gomez de Castro
A. Talavera
Affiliation:
ESA IUE Observatory, VILSPA, P.O.Box 54065, 28080 Madrid, Spain
A.I. Gomez de Castro
Affiliation:
ESA IUE Observatory, VILSPA, P.O.Box 54065, 28080 Madrid, Spain

Extract

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The contribution of A supergiant stars to the return of mass and energy to the interstellar medium is not very important. Abbott (1982) analised a sample of early stars and concluded that B and A supergiants provided less than 8 % of the mass input to the ISM by stellar winds. However, A-type supergiants are important in the framework of the stellar winds-mass loss phenomenology since they are located at the boundary between hot and cool stars, where radiative acceleration may not be sufficiently efficient to drive the wind.

Type
II. Mechanical Energy Sources
Information
International Astronomical Union Colloquium , Volume 120: Structure and Dynamics of the Interstellar Medium , 1989 , pp. 146 - 151
Copyright
Copyright © Springer-Verlag 1989

References

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