7-11 July 2014
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=16&confId=34"><font color=#0000ff>SAIP2014 Proceedings published on 17 April 2015</font></a>

Tidal Effects on Pulsation Modes in Close Binaries

10 Jul 2014, 14:00
Oral Presentation Track D1 - Astrophysics Space


Dr Fabio Frescura (University of the Witwatersrand)

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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.

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Main supervisor (name and email)<br>and his / her institution

Fabio Frescura
University of the Witwatersrand

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Primary author

Mr Massimo Predieri (University of the Witwatersrand)


Dr Christian Engelbrecht (University of Johannesburg) Dr Fabio Frescura (University of the Witwatersrand)

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