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Chris Engelbrecht, Fabio Frescura & Sashin Moonsamy

Observational signatures of rapidly rotating, pulsating B stars

(Volume 80 - Année 2011)
Article
Open Access

Abstract

The effects of the geometric distortion of a rapidly rotating star on the relative amplitudes of radial velocity and luminosity variations are modeled. The possibility of determining the inclination angle of the rotation axis of a rapidly rotating star, from observations of its radial velocity and luminosity variations, is then explored and the nature of these effects for a model of an early B main-sequence star are presented. It is found that this approach holds sufficient promise that more detailed calculations should be embarked upon.

To cite this article

Chris Engelbrecht, Fabio Frescura & Sashin Moonsamy, «Observational signatures of rapidly rotating, pulsating B stars», Bulletin de la Société Royale des Sciences de Liège [En ligne], Volume 80 - Année 2011, 139 - 143 URL : http://popups.ulg.be/0037-9565/index.php?id=2601.

About: Chris Engelbrecht

Department of Physics, University of Johannesburg, South Africa

About: Fabio Frescura

School of Physics, University of the Witwatersrand, Johannesburg, South Africa

About: Sashin Moonsamy

School of Physics, University of the Witwatersrand, Johannesburg, South Africa