Seismic tests of accretion in central stars of planetary systems

Michael Bazot; Sylvie Vauclair

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arXiv · astro-ph/0309830

Seismic tests of accretion in central stars of planetary systems

Michael Bazot·Sylvie Vauclair

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Abstract

Central stars of extra-solar planetary systems are metal-rich. Planet accretion or initial surmetallicity can explain this observationnal fact. These scenarios can be tested with asteroseismology. We calibrate two stellar models, one with accretion and one with high initial metallicity, in order to obtain the same external parameters for both of them. We then compare their internal structures and their oscillation frequencies.

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Michael Bazot, Sylvie Vauclair. 2003-09-30. Seismic tests of accretion in central stars of planetary systems. https://arxiv.org/abs/astro-ph/0309830

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