Variable stars in the field of the globular cluster E3
Astrophysics
2008-11-26 v1
Abstract
We present the results of a search for variable stars in the faint sparse globular cluster E3. We have found two variable stars: an SX Phe variable (V1) and a W UMa eclipsing binary (V2). We have applied period-luminosity and period-color-luminosity relations to the variables to obtain their distance moduli. V1 seems to be a blue straggler belonging to E3, based on its distance modulus and location on the CMD. V2 is probably located behind the cluster, in the Milky Way halo. We also present V/B-V and V/V-I color magnitude diagrams of E3.
Cite
@article{arxiv.astro-ph/0002341,
title = {Variable stars in the field of the globular cluster E3},
author = {B. J. Mochejska and J. Kaluzny and I. Thompson},
journal= {arXiv preprint arXiv:astro-ph/0002341},
year = {2008}
}
Comments
7 pages, Latex, 3 Postscript figures, submitted to Acta Astronomica