7-11 July 2014
Africa/Johannesburg timezone
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Tidal Effects on Pulsation Modes in Close Binaries

Presented by Dr. Fabio FRESCURA on 10 Jul 2014 from 14:00 to 14:20
Type: Oral Presentation
Session: Space
Track: Track D1 - Astrophysics

Abstract

Light curve data from the Kepler satellite on pulsating eclipsing Algol-type binary systems display a peculiar feature: the primary shows preferential excitation of putative pulsation modes with frequencies resonant with the orbital frequency of the binary system. A proposed explanation of this phenomenon is tidal driving of pulsations by the secondary. This paper presents a preliminary calculation of the effects of linear representations of tides on the pulsation frequencies of a polytropic primary.

Award

Yes

Level

MSc

Supervisor

Fabio Frescura fabiofrescura@gmail.com University of the Witwatersrand

Paper

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