As it is long known, the presence of a convective region creates a discontinuity in the chemical profile of a star, which in turn translates into a sharp variation of the adiabatic sound speed. This variation produces an oscillatory behavior of the pulsation frequencies, to which low degree p-modes are sensitive. We investigate the possibility of detecting the signature related to the presence of a convective core in the frequency spectrum of low-mass stars by means of suitable frequency combinations (such as separations and ratios)
@article{arxiv.1004.2928,
title = {Convective core size determination using asteroseismic data},
author = {V. Silva Aguirre and J. Ballot and A. Serenelli and A. Weiss},
journal= {arXiv preprint arXiv:1004.2928},
year = {2010}
}
Comments
HELAS IV International Conference Proceedings, to be published in Astronomische Nachrichten