Variable stars in Stellar Systems
Abstract
We discuss in detail the pulsation properties of variable stars in globular clusters (GCs) and in Local Group (LG) dwarf galaxies. Data available in the literature strongly support the evidence that we still lack a complete census of variable stars in these stellar systems. This selection bias is even more severe for small-amplitude variables such as Oscillating Blue Stragglers (OBSs) and new exotic groups of variable stars located in crowded cluster regions. The same outcome applies to large-amplitude, long-period variables as well as to RR Lyrae and Anomalous Cepheids in dwarf galaxies.
Cite
@article{arxiv.astro-ph/0212183,
title = {Variable stars in Stellar Systems},
author = {Giuseppe Bono and Silvia Petroni and Marcella Marconi},
journal= {arXiv preprint arXiv:astro-ph/0212183},
year = {2007}
}
Comments
9 pages, 2 figures, (Invited Talk), in "Interplay between Periodic, Cyclic and Stoschastic Variability in Seelected Areas of the HR Diagram", ed. C. Sterken (San Francisco: ASP), in press