BVI Photometric Variability Survey of M3

Abstract

We have conducted a three band (BVI) variability survey of the globular cluster M3. This is the first three band survey of the cluster using modern image subtraction techniques. Observations were made over 9 nights in 1998 on the 1.2m telescope at the F.L. Whipple Observatory in Arizona. We present photometry for 180 variable stars in the M3 field, of which 12 are newly discovered. New discoveries include six SX Phe type variables which all lie in the blue straggler region of the color magnitude diagram, two new first overtone RR Lyrae, a candidate multi-mode RR Lyrae, a detached eclipsing binary, and two unclassified variables. We also provide revised periods for 52 of the 168 previously known variables that we observe. The catalog and photometry for the variable stars are available via anonymous ftp at ftp://cfa-ftp.harvard.edu/pub/kstanek/M3/

35 pages, 11 figures. Movies associated with this paper at http://www-cfa.harvard.edu/~jhartman/M3_movies.html Accepted for publication in the Astronomical Journal. This replacement contains a few minor revisions

References in corpus (4)

• Variable Stars in Galactic Globular Clusters
• The Evolutionary Status of M3 RR Lyrae Variables: Breakdown of the Canonical Framework?
• Cluster AgeS Experiment. Catalog of Variable Stars in the Globular Cluster Omega Centauri
• Image-Subtraction Photometry of the Globular Cluster M3: identification of new double-mode RR Lyrae stars

Cited by in corpus (9)

• Overtone and multi-mode RR Lyrae stars in the globular cluster M3
• Long-term photometric monitoring of RR Lyr stars in M3
• Multicolour CCD photometry of the variable stars in globular cluster M3
• Photometric and radial-velocity time-series of RR Lyrae stars in M3: analysis of single-mode variables
• Near-infrared Census of RR Lyrae variables in the Messier 3 globular cluster and the Period--Luminosity Relations
• The Swift/UVOT Stars Survey. II. RR Lyrae Stars in M 3 and M 15
• Blazhko type fundamental-mode RR Lyrae stars in the globular cluster, M3
• Multi-wavelength Photometric Study of RR Lyrae Variables in the Globular Cluster NGC 5272 (Messier 3)
• A search for photometric variability towards the globular cluster M3 with the TWenty Inch Survey Telescope