Multiline transfer and the dynamics of stellar winds

A Monte Carlo technique for treating multiline transfer in stellar winds is described and tested. With a line list containing many thousands of transitions and with fairly realistic treatments of ionization, excitation, and line formation, the resulting code allows the dynamical effects of overlappi...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:The Astrophysical journal Jg. 288; H. 2; S. 679 - 693
Hauptverfasser: Abbott, D. C., Lucy, L. B.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Chicago, IL University of Chicago Press 01.01.1985
Schlagworte:
Astronomy
Earth, ocean, space
Exact sciences and technology
Mass loss and stellar winds
Stars
Stellar characteristics and properties
First type star
Mass loss
Radiative transfer
Stellar wind
Dynamics
ISSN:0004-637X, 1538-4357
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A Monte Carlo technique for treating multiline transfer in stellar winds is described and tested. With a line list containing many thousands of transitions and with fairly realistic treatments of ionization, excitation, and line formation, the resulting code allows the dynamical effects of overlapping lines to be investigated quantitatively, as well as providing the means of directly synthesizing the complete spectrum of a star and its wind. As a direct result of this improved treatment of multiline transfer, the computed mass loss rate for Zeta Puppis is now found to agree with the observed rate. The synthesized spectrum of Zeta Puppis also agrees with observational data. These results confirm that line driving is the dominant acceleration mechanism in this star's wind.
Bibliographie:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0004-637X
1538-4357
DOI:10.1086/162834