199 citations · 744 across the 25 of their papers we have counts for
7 papers · 1 filter
Optical-NIR variability of blazars on diverse timescales
A. Agarwal, A. C. Gupta
To search for optical variability on a wide range of timescales, we have carried out photometric monitoring of 3C 454.3, 3C 279 and S5 0716+714. CCD magnitudes in B, V, R and I pas…
Multi-band optical variability of the Blazar S5 0716+714 in outburst state during 2014-2015
Aditi Agarwal, Alok C. Gupta, R. Bachev +7
We analyzed the multi-band optical behaviour of the BL Lacertae object, S5 0716+714, during its outburst state from 2014 November - 2015 March. We took data on 23 nights at three o…
Optical and Radio Variability of BL Lacertae
Haritma Gaur, Alok C. Gupta, R. Bachev +17
We observed the prototype blazar, BL Lacertae, extensively in optical and radio bands during an active phase in the period 2010--2013 when the source showed several prominent outbu…
Frequency dependent core shifts and parameter estimation for the blazar 3C 454.3
P. Mohan, A. Agarwal, A. Mangalam +9
We study the core shift effect in the parsec scale jet of the blazar 3C 454.3 using the 4.8 GHz - 36.8 GHz radio light curves obtained from three decades of continuous monitoring.…
Multi-band optical-NIR variability of blazars on diverse timescales
Aditi Agarwal, Alok C. Gupta, R. Bachev +10
To search for optical variability on a wide range of timescales, we have carried out photometric monitoring of two flat spectrum radio quasars, 3C 454.3 and 3C 279, plus one BL Lac…
Multi-band optical variability studies of BL Lacertae
Aditi Agarwal, Alok C. Gupta
We monitored BL Lacertae for 13 nights in optical B, V, R, and I bands during October and November 2014 including quasi-simultaneous observations in V and R bands using two optical…