Dhiman, Vinit; Gupta, Alok C. ,et.al.; Gaur, Haritma
(Monthly Notices of the Royal Astronomical Society, 2023-02)
We report the flux and spectral variability of PG 1553 + 113 on intra-night (IDV) to short-term time-scales using BVRI data
collected over 91 nights from 28 February to 8 November 2019 employing 10 optical telescopes: ...