Clusters AgeS Experiment. New variable stars in the globular cluster M 22
Copernicus Astronomical Center, Bartycka 18, 00-716 Warsaw, Poland
2 Carnegie Observatories, 813 Santa Barbara St., Pasadena, CA 91101-1292, USA e-mail: email@example.com
Corresponding author: J. Kaluzny, firstname.lastname@example.org
Accepted: 23 April 2001
We report the identification of 36 new variable stars located in the central field of the globular cluster M 22. The sample includes 10 SX Phe stars, 7 RR Lyr stars and 17 candidate eclipsing binaries. A low-amplitude variable was detected among the extended horizontal branch stars.
Key words: globular clusters: individual: M 22 / stars: variables: RRlyr; general / blue stragglers; binaries: eclipsing
© ESO, 2001