2002AJ....123..279V

Query : 2002AJ....123..279V

2002AJ....123..279V - Astron. J., 123, 279-289 (2002/January-0)

Variable stars in the field of the globular cluster NGC 3201.

VON BRAUN K. and MATEO M.

Abstract (from CDS):

We report on the discovery and analysis of 14 short-period variable stars in the field of the southern globular cluster NGC 3201, located within roughly 2 mag on either side of the main-sequence turnoff. Eleven of these variable stars are eclipsing binaries, one is an RR Lyrae, and two are thus far unclassified systems. Among the eclipsing binary stars, nine are of the W Ursae Majoris (W UMa) type, one an Algol (EA) system, and one a detached system. Using spectroscopic follow-up observations, as well as analysis of the variables' locations in the color-magnitude diagram of the cluster, we find that only one variable star (a W UMa type blue straggler) is actually a member of NGC 3201. We present the phased photometry light curves for all the variable star systems, as well as their locations in the field of view and in the color-magnitude diagram.

Abstract Copyright: ∼

Journal keyword(s): Stars: Binaries: Eclipsing - Stars: Blue Stragglers - Stars: Color-Magnitude Diagrams - ISM: Dust, Extinction - Galaxy: Globular Clusters: Individual: NGC Number: NGC 3201 - Stars: Variables: General

VizieR on-line data: <Available at CDS (J/AJ/123/279): phot.dat table1.dat light-curves>

Nomenclature: Table 1: Cl* NGC 3201 VM VNN (Nos V1-V14).

Simbad objects: 15

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Number of rows : 15
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* V504 Vel EB* 10 16 36.9119651180 -46 22 28.999149532           ~ 2 0
2 Cl* NGC 3201 VM V13 V* 10 17 04.83 -46 26 39.7           ~ 1 0
3 V* V505 Vel EB* 10 17 07.6995658640 -46 30 18.001691181           ~ 2 0
4 V* V506 Vel EB* 10 17 13.7169667916 -46 27 54.548059931           ~ 2 0
5 V* V507 Vel EB* 10 17 17.1517383408 -46 27 37.260625644           ~ 1 0
6 V* V508 Vel EB* 10 17 25.6876571832 -46 20 12.044952024           ~ 1 0
7 NGC 3201 GlC 10 17 36.82 -46 24 44.9           ~ 1001 0
8 Cl* NGC 3201 VM V5 EB* 10 17 52.8844282899 -46 34 06.393141435           ~ 2 0
9 Cl* NGC 3201 VM V6 EB* 10 17 59.0405216088 -46 33 25.396034940           ~ 2 0
10 V* V510 Vel RR* 10 18 03.8586728352 -46 17 48.278807736           ~ 8 0
11 V* V511 Vel EB* 10 18 32.0371363985 -46 37 32.262501791           ~ 2 0
12 V* V512 Vel EB* 10 18 32.7302679816 -46 30 42.197630004           ~ 3 0
13 Cl* NGC 3201 VM V14 V* 10 18 36.2950913232 -46 22 05.822419908           ~ 1 0
14 V* V513 Vel EB* 10 18 46.0362052750 -46 30 13.337669537           ~ 2 0
15 V* V514 Vel EB* 10 18 56.0720421528 -46 36 09.701665272           ~ 1 0

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