4 citations · 6 across the 3 of their papers we have counts for
3 papers
Multi-band optical variability of the blazar OP 313 in the outburst state during 2024-2025
P. U. Devanand, Alok C. Gupta, Karan Dogra +2
We present the analysis results of flux and spectral variability of the blazar OP 313 across intra-night to short-term timescales using BVRI photometric data, gathered over 25 nigh…
Testing Colour-magnitude Pattern as A Method in the Search for Changing-Look AGNs
Li-tao Zhu, Zhongxiang Wang, P. U. Devanand +6
We develop a simple method to search for changing-look (CL) active galactic nucleus (AGN) candidates, and conduct a test run. In this method, optical variations of AGNs are monitor…
Multiband Optical Variability of the Blazar 3C 454.3 on Diverse Timescales
Karan Dogra, Alok C. Gupta, C. M. Raiteri +79
Due to its peculiar and highly variable nature, the blazar 3C 454.3 has been extensively monitored by the WEBT team. Here, we present for the first time these long-term optical flu…