A Study of RR1 Lightcurve Modulation in OGLE_III Bulge Time-series
- Resource Type
- Working Paper
- Authors
- Welch, Douglas L.; Foster, Grant
- Source
- Subject
- Astrophysics - Solar and Stellar Astrophysics
- Language
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.
Comment: Presented at the "40 Years of Variable Stars: A Celebration of Contributions by Horace A. Smith" conference (arXiv:1310.0149). 11 pages, 12 figures