Partial Redistribution in the Winds of Red Giants

Hempe, K.

doi:10.1007/978-94-009-5372-7_27

Partial Redistribution in the Winds of Red Giants

K. Hempe⁴

Chapter

141 Accesses
1 Citations

Part of the book series: NATO ASI Series ((ASIC,volume 152))

Abstract

Most late-type giants and supergiants are losing mass in cool stellar winds. The only evidence for mass loss in single stars is the presence of a characteristic asymmetry deep in the core of photospheric lines. These asymmetries can be observed with modern high resolution coude echelle spectrographs and can be used for a study of mass loss rates and the wind structure in red giants. In this paper, we study the effects of partial redistribution functions R_I-A and R_II-A and complete redistribution on line profiles. The equation of transfer has been solved for a two level atom in the comoving frame.

This is a preview of subscription content, log in via an institution.

Chapter: USD 29.95; Price excludes VAT (USA)

eBook: USD 39.99; Price excludes VAT (USA)

Softcover Book: USD 54.99; Price excludes VAT (USA)

Tax calculation will be finalised at checkout

Purchases are for personal use only

Learn about institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

References

Cannon,C.J.,Vardavas,I.M.:1974, Astron.Astrophys.32 85
ADS Google Scholar
Che, A.,Hempe,K.,Reimers,D.:1983, Astron.Astrophys.126 225
ADS Google Scholar
Deutsch,A.J. :1956, Astrophys.J.123 210
Article ADS Google Scholar
Drake,S.A.,Linsky,J.L.:1983, Astrophys.J.273 299
Article ADS Google Scholar
Hamann,W.-R.,Kudritzki,R.-P.:1977, Astron.Astrophys.54 525
ADS Google Scholar
Hamann,W.-R. :1980, Astron.Astrophys.84 342
ADS Google Scholar
Hummer,D.G. :1962, Monthly Notices Roy.Astr.Soc.125 21
ADS Google Scholar
Magnan,C. :1974, Astron.Astrophys.35 233
ADS Google Scholar
Mihalas,D.,Kunasz,P.B.,Hummer,D.G.:1975, Astrophys.J.202 465
Article ADS Google Scholar
Mihalas,D.,Kunasz,P.B.,Hummer,D.G.:1976, Astrophys.J.205 492
Article ADS Google Scholar
Mihalas,D. :1978,Stellar Atmospheres (San Francisco:Freeman), p. 438
Google Scholar
Peraiah,A. :1979, Kodaikanal Obs.Bull.Series A,2 203
ADS Google Scholar
Reimers,D. :1981, Physical Processes in Red Giants (ed. I.Iben, A. Renzini), Reidel, p. 269
Google Scholar
Sanner,F. :1976, Astrophys.J.Suppl.Series32 115
Article ADS Google Scholar
Wehrse,R.,Peraiah,A.:1979, Astron.Astrophys.71 289
ADS Google Scholar
Weymann,R. :1962, Astrophys.J.136 844
Article ADS Google Scholar

Download references

Author information

Authors and Affiliations

Hamburger Sternwarte, University of Hamburg, Gojenbergsweg 112, D-2050, Hamburg 80, Federal Republik of Germany
K. Hempe

Authors

K. Hempe
View author publications
You can also search for this author in PubMed Google Scholar

Editor information

Editors and Affiliations

Department of Physics, Queen Mary College, London, UK
John E. Beckman
Instituto de Astrofisica de Canarias, La Laguna, Tenerife, Spain
John E. Beckman
Osservatorio Astronomico di Trieste, Trieste, Italy
Lucio Crivellari

Rights and permissions

Reprints and permissions

Copyright information

About this chapter

Cite this chapter

Hempe, K. (1985). Partial Redistribution in the Winds of Red Giants. In: Beckman, J.E., Crivellari, L. (eds) Progress in Stellar Spectral Line Formation Theory. NATO ASI Series, vol 152. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-5372-7_27

Download citation

DOI: https://doi.org/10.1007/978-94-009-5372-7_27
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-8870-1
Online ISBN: 978-94-009-5372-7
eBook Packages: Springer Book Archive

Publish with us

Policies and ethics