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U B V I Time-series Photometry of the Old LMC Globular Cluster Reticlum
2007
Communications in Asteroseismology
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We present new U BV I CCD observations of the old LMC globular cluster RETICULUM. These data allowed us to re-determine periods and light curves and to identify 4 double mode RR Lyrae stars. A comparison with the theoretical instability strip in the M V − log P plane shows good agreement between theory and observations when an apparent distance modulus of (m − M )=18.45±0.12 mag (i.e.(m − M ) 0 =18.39±0.12 mag) is assumed.
doi:10.1553/cia145s23
fatcat:a5acrq34iraftdgs7qvanfuc7y