7 papers
Evidence for a bursty -ray QPO in the neutrino-associated FSRQ PKS 1424418 using Fast Template Periodograms and Machine Learning
Aaron A. Maldonado, Alberto DomÃnguez, Adithiya Dinesh +4
Standard frequency-domain searches for quasi-periodic oscillations (QPOs) in active galactic nuclei generally assume sinusoidal variability. However, -ray blazar emission often…
An Accretion Flare Interpretation for the Ultra-High-Energy Neutrino Event KM3-230213A
Chengchao Yuan, Leonard Pfeiffer, Walter Winter +4
We study the origin of the ultra-high-energy (UHE) neutrino event KM3-230213A detected by KM3NeT, focusing on MRC 0614-083 which has been pinpointed as the closest blazar to the ne…
The changing look of the neutrino-emitter blazar candidate 5BZQ J1243+4043
Alessandra Azzollini, Sara Buson, Alexis Coleiro
In recent years, changing-look blazars have called the traditional view of BL Lacs-flat spectrum radio quasars into question within the empirical classification of blazars. Based o…
Characterizing Candidate Blazar Counterparts of the Ultra-High-Energy Event KM3-230213A
KM3NeT Collaboration, MessMapp Group, LAT Collaboration +13
High-energy astrophysical neutrinos serve as crucial messengers for understanding hadronic acceleration processes and identifying the origins of cosmic rays, with blazars among the…
A Systematic Search for Spectral Hardening in Blazar Flares with the Fermi-Large Area Telescope
Adithiya Dinesh, Alberto Dominguez, V. Paliya +3
Blazars are a subclass of active galactic nuclei (AGN) that emit non-thermal radiation through relativistic jets, characterized by rapid flux and polarization variability. High syn…
The physical properties of candidate neutrino-emitter blazars
Alessandra Azzollini, Sara Buson, Alexis Coleiro +5
The processes governing the production of astrophysical high-energy neutrinos are still debated, and the sources originating them remain an open question. Among the putative emitte…