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On Mass Loss from Long Period Variables

Published online by Cambridge University Press:  12 April 2016

V.G. Gorbatsky  and
O.V. Fedorova
V.G. Gorbatsky
Affiliation:
Leningrad University Observatory, USSR
O.V. Fedorova
Affiliation:
Fedorova Spatial Astrophysical Observatory, USSR

Extract

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Observations show that long period variables (LPVs) as well as many other giant and supergiant stars are losing mass extensively. As evidence of mass loss one can mention the presence of circumstellar envelopes around LPVs. Such envelopes are inferred from infrared excesses (Gehrz and Woolf, 1971; Reimers, 1975) and maser radiation. P Cyg type profiles are observed in the spectra of some LPVs (Sanner, 1977). The increased brightness of the companion of Mira (a white dwarf) has been interpreted as the result of accretion of matter ejected by the primary (Shklovsky, 1976).

Type
Part III: Evolved Stars
Information
International Astronomical Union Colloquium , Volume 42: The Interaction of Variable Stars with their Environment , 1977 , pp. 591 - 594
Copyright
Copyright © Veröff. Der Remeis-Sterwarte 1977

References

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