Hostname: page-component-77c89778f8-cnmwb Total loading time: 0 Render date: 2024-07-22T18:23:59.623Z Has data issue: false hasContentIssue false
  • English
  • Français

Si II Lines in the Shell of ζ Tau

Published online by Cambridge University Press:  14 August 2015

Sara R. Heap
Sara R. Heap*
Affiliation:
Laboratory for Optical Astronomy, Goddard Space Flight Center, Greenbelt, Md., U.S.A.

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Non-LTE strengths of Si II lines were computed in an effort to reproduce the observed strengths of Si II lines in the shell spectrum of ζ Tau. This effort was unsuccessful, probably because it assumed that the shell could be represented by a finite, plane-parallel slab. The main conclusion of this study, then, is that in order to understand the shell spectra of Be stars, a more realistic geometry must be assumed, in which the shell is represented by a thick disk.

Type
Part IV: Line Formation in Expanding Atmospheres
Information
Symposium - International Astronomical Union , Volume 70: Be and Shell Stars , 1976 , pp. 315 - 320
Copyright
Copyright © Reidel 1976 

References

Heap, S. R.: 1975, Phil. Trans. Roy. Soc. London A. 279, 371.Google Scholar
Mihalas, D. M.: 1970, Stellar Atmospheres , W. H. Freeman, San Francisco.Google Scholar