Photometric amplitudes and phases of B-type main sequence pulsators: sources of inaccuracy
Solar and Stellar Astrophysics
2010-04-15 v1
Abstract
We discuss all possible sources of uncertainties in theoretical values of the photometric amplitudes and phases of B-type main sequence pulsators. These observables are of particular importance because they contain information about the mode geometry as well as about stellar physics. Here, we study effects of various parameters coming both from theory of linear nonadiabatic oscillations and from models of stellar atmospheres. In particular, we show effects of chemical composition, opacities and, for the first time, effects of the NLTE atmospheres.
Keywords
Cite
@article{arxiv.1004.2363,
title = {Photometric amplitudes and phases of B-type main sequence pulsators: sources of inaccuracy},
author = {Wojciech Szewczuk and Jadwiga Daszyńska-Daszkiewicz},
journal= {arXiv preprint arXiv:1004.2363},
year = {2010}
}
Comments
5 pages, 6 figures, Astronomical Notes, submitted The proceedings of the HELAS IV conference, Lanzarote 1-5 February, 2010, Eds. T. Roca Cortes, P. Palle and S. Jimenez Reyes