Eclipsing binaries in the open cluster NGC 2243 - I. Photometry
Astrophysics
2007-05-23 v1
Abstract
We obtained BV time series photometry for 12 variable stars from the field of the old open cluster NGC 2243. The sample includes 3 newly identified detached/semi-detached binaries. There are now four detached eclipsing binaries which are likely members of the cluster. Determination of the absolute parameters of the components would provide a valuable check on evolutionary models of low-mass stars. An accurate ephemeris and orbital period analysis are presented for the previously-known detached binary NV CMa. We also provide ephemerides for 7 other periodic variables. We show that 3 contact binaries are likely members of the cluster.
Cite
@article{arxiv.astro-ph/0609379,
title = {Eclipsing binaries in the open cluster NGC 2243 - I. Photometry},
author = {J. Kaluzny and W. Krzeminski and I. B. Thompson and G. Stachowski},
journal= {arXiv preprint arXiv:astro-ph/0609379},
year = {2007}
}
Comments
12 pages, 7 figures