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
scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.
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.
Similar publications
Sorry the service is unavailable at the moment. Please try again later.
This website uses cookies to improve user experience. Read more
Save & Close
Accept all
Decline all
Show detailsHide details
Cookie declaration
About cookies
Strictly necessary
Performance
Strictly necessary cookies allow core website functionality such as user login and account management. The website cannot be used properly without strictly necessary cookies.
This cookie is used by Cookie-Script.com service to remember visitor cookie consent preferences. It is necessary for Cookie-Script.com cookie banner to work properly.
Performance cookies are used to see how visitors use the website, eg. analytics cookies. Those cookies cannot be used to directly identify a certain visitor.
Used to store the attribution information, the referrer initially used to visit the website
Cookies are small text files that are placed on your computer by websites that you visit. Websites use cookies to help users navigate efficiently and perform certain functions. Cookies that are required for the website to operate properly are allowed to be set without your permission. All other cookies need to be approved before they can be set in the browser.
You can change your consent to cookie usage at any time on our Privacy Policy page.
