111 citations · 1.1k across the 53 of their papers we have counts for
52 papers
PKS 2155-304: Long-Term Optical Photometric Monitoring and Variability Analysis
J. L. Weiss, I. Andruchow, E. J. Marchesini +6
Through the detailed study of the optical flux behaviour in blazars over time, it is possible to infer the conditions responsible for their observed emission. PKS 2155-304, a BL La…
Powerful Radio Sources in the Southern Sky. IV. Observations of the G4Jy-3CRE Catalog with the Australian Square Kilometre Array Pathfinder
Siegfried A. Gawenda, Juan P. Madrid, Francesco Massaro +19
A recent 2023 paper by Massaro et al. introduced the G4Jy-3CRE, a new catalog of the brightest radio sources in the southern hemisphere that serve as a southern equivalent to the T…
Optical Design of OPTICAM-ARG: A Three-Channel High-Time-Resolution Camera for the Jorge Sahade Telescope
M. R. Najera, J. Herrera Vazquez, E. Luna +5
We present the optical design of OPTICAM-ARG, a multi-channel instrument for the simultaneous acquisition of images in three spectral bands at the Cassegrain focus of an f/8.5 tele…
SN 2024ggi: another year, another striking Type II supernova
K. Ertini, T. A. Regna, L. Ferrari +19
SN 2024ggi is a Type II supernova that exploded in the nearby galaxy NGC 3621 at a distance of approximately 7 Mpc, making it one of the closest supernovae of the decade. This SN s…
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 optical variability on diverse timescales of the TeV blazar TXS 0506+56, the first cosmic neutrino source
Vinit Dhiman, Alok C. Gupta, Rumen Bachev +9
We report the first extensive optical flux and spectral variability study of the TeV blazar TXS 0506+056 on intra-night to long-term timescales using BVRI data collected over 220 n…