机译:LOW-AMPLITUDE VARIABLES: DISTINGUISHING RR LYRAE STARS FROM ECLIPSING BINARIES
NOAO, P.O. Box 26732, Tucson, AZ 85726, USA;
Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, MA 02138, USA;
Galaxy: halo; Galaxy: structure; stars: horizontal-branch; stars: individual (RR Lyrae);