activity
20012023
most citedBlazar spectral variability as explained by a twisting inhomogeneous jet

199 citations · 771 across the 16 of their papers we have counts for

collaborators

16 papers

astro-ph.HE2023★ 24 cited

The optical behaviour of BL Lacertae at its maximum brightness levels: a blend of geometry and energetics

C. M. Raiteri, M. Villata, S. G. Jorstad +13

In 2021 BL Lacertae underwent an extraordinary activity phase, which was intensively followed by the Whole Earth Blazar Telescope (WEBT) Collaboration. We present the WEBT optical…

astro-ph.HE2021★ 49 cited

Investigation of the correlation patterns and the Compton dominance variability of Mrk 421 in 2017

MAGIC Collaboration, V. A. Acciari, S. Ansoldi +284

We present a detailed characterisation and theoretical interpretation of the broadband emission of the paradigmatic TeV blazar Mrk 421, with special focus on the multi-band flux co…

astro-ph.HE2021★ 41 cited

The complex variability of blazars: Time-scales and periodicity analysis in S4 0954+65

C. M. Raiteri, M. Villata, V. M. Larionov +3

Among active galactic nuclei, blazars show extreme variability properties. We here investigate the case of the BL Lac object S4 0954+65 with data acquired in 2019-2020 by the Trans…

astro-ph.HE2021★ 7 cited

Short-Timescale Variability of the Blazar Mrk 421 from AstroSat and Simultaneous Multi-Wavelength Observations

Ritaban Chatterjee, Susmita Das, Archishman Khasnovis +13

We study the multi-wavelength variability of the blazar Mrk 421 at minutes to days timescales using simultaneous data at -rays from Fermi, 0.7-20 keV energies from AstroSat, and…

astro-ph.HE2020★ 30 cited

VHE gamma-ray detection of FSRQ QSO B1420+326 and modeling of its enhanced broadband state in 2020

V. A. Acciari, S. Ansoldi, L. A. Antonelli +230

Context. QSO B1420+326 is a blazar classified as a Flat Spectrum Radio Quasar (FSRQ). In the beginning of 2020 it underwent an enhanced flux state. An extensive multiwavelength cam…

astro-ph.HE2020★ 52 cited

The dual nature of blazar fast variability. Space and ground observations of S5 0716+714

C. M. Raiteri, M. Villata, D. Carosati +39

Blazar S5 0716+714 is well-known for its short-term variability, down to intra-day time-scales. We here present the 2-min cadence optical light curve obtained by the TESS space tel…