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Seismic Tests of Accretion in Central Stars of Planetary Systems
Published online by Cambridge University Press: 12 April 2016
Abstract
Central stars of extra-solar planetary systems are metal-rich. Planet accretion or initial high metallicity are two models proposed to explain this observational fact that can be tested with asteroseismology. We calculate 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.
- Type
- Part 7. Chemical composition of variable stars
- Information
- International Astronomical Union Colloquium , Volume 193: Variable Stars in the Local Group , 2004 , pp. 422 - 425
- Copyright
- Copyright © Astronomical Society of the Pacific 2004