Formation of resonance doublet profiles in rapidly expanding envelopes

FINE STRUCTURE; SPECTRAL LINE WIDTH; STELLAR ENVELOPES; STELLAR RADIATION; STELLAR SPECTRA; EQUILIBRIUM EQUATIONS; OPTICAL THICKNESS; PARTICLE ACCELERATION; RADIATION DISTRIBUTION; RADIATIVE TRANSFER; RESONANCE; EARLY STARS

Abstract :

[en] Sobolev's escape probability method is used to investigate the transfer of spectral line radiation for a resonance doublet in a rapidly expanding envelope. A three-level atom model is used to derive expressions for the spectral radiation fields J12 and J13, the resulting radiative force exerted per atom, and the resonance doublet profile for the cases of outward-accelerating (or equivalently inward-decelerating) and outward-decelerating (or equivalently inward-accelerating) envelopes. Criteria are deduced under which resonance doublet profiles formed in outward-accelerating and/or outward-decelerating envelopes would appear to be resolved into double P Cygni profiles.

Disciplines :

Space science, astronomy & astrophysics

Author, co-author :

Surdej, Jean ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)

Language :

English

Title :

Formation of resonance doublet profiles in rapidly expanding envelopes

Publication date :

1980

Journal title :

Astrophysics and Space Science

ISSN :

0004-640X

eISSN :

1572-946X

Publisher :

Springer Science & Business Media B.V., Dordrecht, Netherlands

Volume :

Pages :

101-158

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://esoads.eso.org/abs/1980Ap%26SS..73..101S

Commentary :

http://www.springerlink.com/content/t80888267w334225/

Available on ORBi :

since 13 September 2009

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Bibliography

Appenzeller I. Astron. Astrophys. 1979, 71:305.
Bertout C. Astron. Astrophys. 1977, 58:153.
Castor J.I. (1970) Spectral Line Formation in Wolf-Rayet Envelopes*. Monthly Notices of the Royal Astronomical Society 149:111.
Castor J.I. (1974) On the Force Associated with Absorption of Spectral Line Radiation. Monthly Notices of the Royal Astronomical Society 169:279.
Castor J.I., Abbott D.C., Klein R.I. (1975) Radiation-driven winds in Of stars. The Astrophysical Journal 195:157.
Castor J.I., Lamers H.J.G.L.M. Astrophys. J. 1979, 481.
Hewitt T.G., Noerdlinger P.D. (1974) Transfer of resonance-line radiation in differentially expanding atmospheres. III. Formation of P Cyg-type lines by a doublet line of two partially "blended" lines. The Astrophysical Journal 188:315.
.
Lucy L.B. (1971) The Formation of Resonance Lines in Extended and Expanding Atmospheres. The Astrophysical Journal 163:95.
Lucy L.B., Solomon P.M. Astrop. J. 1967, 72:310.
Lucy L.B., Solomon P.M. (1970) Mass Loss by Hot Stars. The Astrophysical Journal 159:879.
.
Mihalas D. Stellar Atmospheres , W. H. Freeman & Co., San Francisco; 1970, 356.
Mihalas D., Kunasz P.B., Hummer D.G. (1976) Solution of the comoving-frame equation of transfer in spherically symmetric flows. IV - Frequency-dependent source functions for scattering by atoms and electrons. The Astrophysical Journal 210:419.
Mundt R., Wolf B. IAU Coll. 1977, 42:88.
Sobolev V.V. Dvizusciesja obolocki zvezd, Harvard University Press, Cambridge, Mass., Moving Envelopes of Stars; 1947.
Sobolev V.V. Theoretical Astrophysics, V. A., Ambartsumyan, Pergamon Press Ltd, London; 1958.
Surdej J. Astron. Astrophys. 1977, 60:303.
Surdej J. Astron. Astrophys. 1978, 66:45.
Surdej J. Astron. Astrophys. 1978, 62:135.
Surdej J. Astron. Astrophys. 1979, 73:1.
.
.
Walker M.F. IAU Coll. 1977, 42:92.
Wolf B., Appenzeller I., Bertout C. Astron. Astrophys. 1977, 58:163.