Variable stars in large Magellanic cloud globular clusters. III. Reticulum

Journal Article · Sat Jun 01 00:00:00 EDT 2013 · Astronomical Journal (New York, N.Y. Online)

DOI:https://doi.org/10.1088/0004-6256/145/6/160· OSTI ID:22340083

Kuehn, Charles A.; Dame, Kyra; Smith, Horace A.; others, and

This is the third in a series of papers studying the variable stars in old globular clusters in the Large Magellanic Cloud. The primary goal of this series is to look at how the characteristics and behavior of RR Lyrae stars in Oosterhoff-intermediate systems compare to those of their counterparts in Oosterhoff-I/II systems. In this paper we present the results of our new time-series BVI photometric study of the globular cluster Reticulum. We found a total of 32 variables stars (22 RRab, 4 RRc, and 6 RRd stars) in our field of view. We present photometric parameters and light curves for these stars. We also present physical properties, derived from Fourier analysis of light curves, for some of the RR Lyrae stars. We discuss the Oosterhoff classification of Reticulum and use our results to re-derive the distance modulus and age of the cluster.

• OSTI ID: 22340083
• Journal Information: Astronomical Journal (New York, N.Y. Online), Vol. 145, Issue 6; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1538-3881
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
CLASSIFICATION
COMPARATIVE EVALUATIONS
DIAGRAMS
DISTANCE
FOURIER ANALYSIS
GALAXY CLUSTERS
MAGELLANIC CLOUDS
PHYSICAL PROPERTIES
VARIABLE STARS
VISIBLE RADIATION