Rotation and the Cepheid Mass Discrepancy
Solar and Stellar Astrophysics
2015-06-22 v1
Abstract
We recently showed that rotation significantly affects most observable Cepheid quantities, and that rotation, in combination with the evolutionary status of the star, can resolve the long-standing Cepheid mass discrepancy problem. We therefore provide a brief overview of our results regarding the problem of Cepheid masses. We also briefly mention the impact of rotation on the Cepheid period-luminosity(-color) relation, which is crucial for determining extragalactic distances, and thus for calibrating the Hubble constant.
Keywords
Cite
@article{arxiv.1408.2769,
title = {Rotation and the Cepheid Mass Discrepancy},
author = {Richard I. Anderson and Sylvia Ekström and Cyril Georgy and Georges Meynet and Nami Mowlavi and Laurent Eyer},
journal= {arXiv preprint arXiv:1408.2769},
year = {2015}
}
Comments
2 pages, 1 figure, Proceedings of IAU Symposium 307: New windows on massive stars: asteroseismology, interferometry, and spectropolarimetry