A photometric survey for variable stars in the globular cluster M5
| dc.creator | Kaluzny, J. | |
| dc.creator | Thompson, I. | |
| dc.creator | Krzeminski, W. | |
| dc.creator | Pych, W. | |
| dc.date | 1999-10-12 | |
| dc.date.accessioned | 2026-07-07T02:33:47Z | |
| dc.date.available | 2026-07-07T02:33:47Z | |
| dc.description | We present the results of a photometric survey for variable stars in the nearby globular cluster M5. A 14.8x22.8 arcmin^2 field centered on the cluster was monitored for a total of 37 hours with a CCD camera mounted on the 1.0-m Swope telescope. Five new variables were identified: four blue stragglers which are SX Phe pulsating variables, and an eclipsing binary with an orbital period of 0.466 d. The eclipsing binary lies near the main-sequence turnoff on the cluster color-magnitude diagram. We do not confirm the variability of any of the 10 eclipsing binaries identified in the cluster field by Reid (1996) and Yan & Reid (1996). The dwarf nova M5-V101 exhibited two outbursts with full amplitudes of about 2.7 mag during our observations. A V/B-V color-magnitude diagram of the surveyed field was obtained, and a possible extreme HB star located 2 mag below cutoff of the blue HB was identified. | |
| dc.description | 15 pages, LaTex, 11 encapsulated Postscript figures; accepted for publication in A&A | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9910206 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9910206 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/14986 | |
| dc.subject | Astrophysics | |
| dc.title | A photometric survey for variable stars in the globular cluster M5 | |
| dc.type | text |