RR Lyrae - Theory vs Observation
Astrophysics
2009-10-31 v2
Abstract
The luminosities, effective temperatures and metallicities that are derived empirically by Kovacs and Jurcsik from the light curves of a large number of globular cluster and field RRab and RRc stars are compared to theoretical RR Lyrae models. The strong luminosity dependence of the empirical blue and red edges (Log L vs Log Teff diagram) is in disagreement with that of both radiative and convective models. A reexamination of the theoretical uncertainties in the modelling leads us to conclude that the disagreement is irreconcilable.
Keywords
Cite
@article{arxiv.astro-ph/0001442,
title = {RR Lyrae - Theory vs Observation},
author = {Zoltan Kollath and J. Robert Buchler and Michael Feuchtinger},
journal= {arXiv preprint arXiv:astro-ph/0001442},
year = {2009}
}
Comments
6 pages, 5 figures (revised april 2000, revisions relatively minor)