Variable Stars in Large Magellanic Cloud Globular Clusters III: Reticulum

Abstract

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.

11 pages, 10 figures

References in corpus (5)

• Effects of Helium Enrichment in Globular Clusters I.Theoretical Plane with PGPUC stellar evolution code
• Evidence for an Overluminosity of the Variable Star RR Lyr, and a Revised Distance to the LMC
• The origin of globular cluster systems from cosmological simulations
• Variable stars in the Globular Cluster NGC 2808
• Variable Stars in Large Magellanic Cloud Globular Clusters II: NGC 1786

Cited by in corpus (12)

• The Dark Energy Survey: more than dark energy - an overview
• Old-Aged Stellar Population Distance Indicators
• Probing the early chemical evolution of the Sculptor dSph with purely old stellar tracers
• Identifying RR Lyrae Variable Stars in Six Years of the Dark Energy Survey
• New Near-Infrared $JH{K}_s$ light-curve templates for RR Lyrae variables
• Physical properties of star clusters in the outer LMC as observed by the Dark Energy Survey
• Metallicities from high resolution spectra of 49 RR Lyrae Variables
• The Carnegie RR Lyrae Program: Mid-infrared Period-Luminosity relations of RR Lyrae stars in Reticulum
• RR Lyrae mid-infrared Period-Luminosity-Metallicity and Period-Wesenheit-Metallicity relations based on Gaia DR3 parallaxes
• Metallicity of Galactic RR Lyrae from Optical and Infrared Light Curves: II. Period-Fourier-Metallicity Relations for First Overtone RR Lyrae
• Short period variability in the globular cluster NGC 419 and the SMC field
• RR Lyrae Stars in Intermediate-age Magellanic Clusters: Membership Probabilities and Delay Time Distribution