Faculty Publications

Non-Radial Pulsation Models Of The H-Alpha Profile In Bw Vulpeculae

Document Type

Article

Journal/Book/Conference Title

Space Science Reviews

Volume

27

Issue

3-4

First Page

345

Last Page

350

Abstract

The profile of the Hydrogen alpha spectral line in the largeamplitude Beta Cephei star BW Vulpeculae was modeled in terms of a linear, non-radially moving, and rotating stellar atmosphere. The pulsation and rotation parameters were derived from fitting the radial velocity amplitude, and the best fit was obtained for ℓ=2, m=-2, ¿=90°, rotation velocity=120 km/sec, and pulsation amplitude=27 km/sec. When the line profiles are compared to this model, the fit is quite encouraging for most phases, but several discrepancies remain. At the time of writing, it is not clear whether these can be made to disappear by increasing the sophistication of the model, or whether a completely different physical model (e.g. radial) is necessary. © 1980 D. Reidel Publishing Co.

Department

Department of Earth Science

Original Publication Date

11-1-1980

DOI of published version

10.1007/BF00168318

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