23 citations · 101 across the 9 of their papers we have counts for
3 papers · 1 filter
Optical monitoring in southern blazars. Analysis of variability and spectral colour behaviours
L. Zibecchi, I. Andruchow, E. Ej. Marchesini +2
We present the results of the optical monitoring of 18 southern blazars in the V and R Johnson-Cousins bands. Our main objective is to study the variations in the optical flux and…
Multi-band behaviour of the TeV blazar PG 1553+113 in optical range on diverse timescales
A. Agarwal, B. Mihov, I. Andruchow +11
Context. The TeV BL Lac object PG 1553+113 is one of the primary candidates for a binary supermassive black hole system. Aims. We study the flux and spectral variability of PG 1553…
Multiwavelength monitoring of a very active dwarf nova AX J1549.85416 with an unusually high duty cycle
Guobao Zhang, Joseph D. Gelfand, David M. Russell +5
We present the results of our analysis of new optical, ultraviolet (UV) and X-ray observations of a highly variable source AX J1549.85416. Both the detection of several fast…