SIMBAD references

2012AJ....144..186K - Astron. J., 144, 186 (2012/December-0)

Variable stars in Large Magellanic Cloud globular clusters. II. NGC 1786.

KUEHN C.A., SMITH H.A., CATELAN M., PRITZL B.J., DE LEE N. and BORISSOVA J.

Abstract (from CDS):

This is the second in a series of papers studying the variable stars in Large Magellanic Cloud globular clusters. The primary goal of this series is to study how RR Lyrae stars in Oosterhoff-intermediate systems compare to their counterparts in Oosterhoff I/II systems. In this paper, we present the results of our new time-series B-V photometric study of the globular cluster NGC 1786. A total of 65 variable stars were identified in our field of view. These variables include 53 RR Lyraes (27 RRab, 18 RRc, and 8 RRd), 3 classical Cepheids, 1 Type II Cepheid, 1 Anomalous Cepheid, 2 eclipsing binaries, 3 Delta Scuti/SX Phoenicis variables, and 2 variables of undetermined type. Photometric parameters for these variables are presented. We present physical properties for some of the RR Lyrae stars, derived from Fourier analysis of their light curves. We discuss several different indicators of Oosterhoff type which indicate that the Oosterhoff classification of NGC 1786 is not as clear cut as what is seen in most globular clusters.

Abstract Copyright:

Journal keyword(s): Magellanic Clouds - stars: horizontal-branch - stars: variables: general - stars: variables: RR Lyrae

VizieR on-line data: <Available at CDS (J/AJ/144/186): table1.dat table2.dat table3.dat table4.dat>

Nomenclature: Tables 2-3: [G85b] NN (Nos 13-66) added.

Simbad objects: 70

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