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Multiband optical variability of the blazar OJ 287 during its outbursts in 2015 -- 2016
Alok C. Gupta, A. Agarwal, A. Mishra +31
We present recent optical photometric observations of the blazar OJ 287 taken during September 2015 -- May 2016. Our intense observations of the blazar started in November 2015 and…
Peak of spectral energy distribution play an important role in intra-day variability of Blazars?
Alok C. Gupta, Nibedita Kalita, Haritma Gaur +1
Blazars can be divided into two sub-classes namely high energy and low energy peaked blazars. In spectral energy distribution, the first synchrotron hump of the former class peaks…
Multi-band optical variability of three TeV Blazars on Diverse Timescales
Alok C. Gupta, A. Agarwal, J. Bhagwan +7
We present our optical photometric observations of three TeV blazars, PKS 1510-089, PG 1553+113 and Mrk 501 taken using two telescopes in India, one in Bulgaria, one in Greece and…