A Study of RR1 Lightcurve Modulation in OGLE_III Bulge Time-series
Abstract
We report the results of our study of lightcurve modulation in a sample of
493 RR1 variables from the OGLE-III survey of galactic bulge fields. Each
object in this list has 1500 or more I-band observations. We compare our
findings with earlier studies regarding lightcurve modulation in LMC and
galactic field RR1 stars. We also report the discovery of the modulated-Blazhko
RR1 star OGLE-BLG-RRLYR-03825 which has a Blazhko period of 16.469 d which
itself is modulated with a period of 339.2 d.