Time-resolved CCD photometry and time-series analysis of the RR Lyrae type star RR Gem

• 来源期刊: 天文和天体物理学研究
• 年，卷（期）: 2019,（9）
• 页码范围: 27-34
• 页数: 8页
• 语种: 英文
• DOI: 10.1088/1674-4527/19/9/125

摘要

We present the results of a time-resolved photometric and time-series analysis of an RR Lyrae type star RR Gem.The main results are as follows:we found RR Gem's pulsation period,0.39689d,and its V and I mean magnitudes,11.277 (V) and 11.063 (I) mag respectively.We confirm its variability type as RRab/BL because it manifests the Blazhko effect,and it also exhibits asymmetric light curves (steep ascending branches),periods from 0.3 to 1.0 d and amplitudes from 0.3 to 2 mag in V.They are fundamental mode pulsators.