2013/10/02 by D. L. Welch, Welch, Douglas L., Grant Foster +1
Physics and Astronomy · Engineering · #Stellar, planetary, and galactic studies #Astronomy and Astrophysical Research #Astronomical Observations and Instrumentation
paper · pdf · doi:10.48550/arxiv.1310.0534
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.