activity
20242026
collaborators

5 papers

astro-ph.HE2026

Detection of the distant quasar OP 313 with the first Large-Sized Telescope of CTAO

K. Abe, S. Abe, J. Abhir +412

In December 2023, the Large-Sized Telescope prototype (LST-1) detected for the first time VHE -ray emission from the FSRQ OP~313 becoming the furthest blazar ever observed at V…

astro-ph.HE2025

Multiband optical variability on diverse timescales of the blazar Ton 599 from 2011 to 2023

O. Vince, C. M. Raiteri, M. Villata +72

(Shortened)Context: We analyze the optical variability of the FSRQ Ton 599 using BVRI photometry from the WEBT collaboration (2011-2023), complemented by photometric and spectrosco…

astro-ph.HE2025

Insights into the broad-band emission of the TeV blazar Mrk 501 during the first X-ray polarization measurements

S. Abe, J. Abhir, V. A. Acciari +260

We present the first multi-wavelength study of Mrk 501 including very-high-energy (VHE) gamma-ray observations simultaneous to X-ray polarization measurements from the Imaging X-ra…

astro-ph.HE2025

Search for Kink Events in Variable Fermi-LAT Blazars

P. Peñil, H. Zhang, J. Otero-Santos +10

This study explores the detection of Quasi-Periodic Oscillations (QPOs) in blazars as a method to identify kink events within their jets, utilizing both -ray and polarized ligh…

astro-ph.HE2024

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…