Author(s)

Haiyan Yang, Xiaopan Li, Na Jiang, and Guofang Du

Corresponding Author

Haiyan Yang

Abstract

We present the optical I band light curve of PKS 0235-618 from JD2455365 to JD2456728 by performing the original observation data taken from SMART. Using the Jurkevich method, we found that the light curve variability period of BL Lac PKS 2155-304 on opitical R band is about 298 days.

Keywords

BL Lac object, PKS 0235-618, Jurkevich method, Variability period