71 citations · 110 across the 10 of their papers we have counts for
9 papers · 1 filter
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…
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…
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…
X-ray Spectral Variability as Probe of Multimessenger Emission in Blazar 5BZB J0630-24064
Jose Maria Sanchez Zaballa, Sara Buson, Stefano Marchesi +4
X-ray observations are essential for understanding the multimessenger emission mechanisms of active galactic nuclei (AGN). Blazars, a subset of AGN whose X-ray emission predominant…
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…
Hadronic processes at work in 5BZB J0630-2406
Gaëtan Fichet de Clairfontaine, Sara Buson, Leonard Pfeiffer +6
Recent observations are shedding light on the important role that active galactic nuclei (AGN) play in the production of high-energy neutrinos. In this study, we focus on one objec…
Extragalactic neutrino factories
Sara Buson, Andrea Tramacere, Lenz Oswald +6
Identifying the astrophysical sources responsible for the high-energy cosmic neutrinos has been a longstanding challenge. In a previous work, we report evidence for a spatial corre…
Spectroscopic Signature of a Re-established Accretion Disk in Symbiotic-like Recurrent Nova RS Ophiuchi
Alessandra Azzollini, Steven Neil Shore, Paul Kuin
A novel method is presented which can pin down the time the accretion disk re-established itself in the RS Oph system after it experienced a nova disruption. The method is based on…
Beginning a journey across the universe: the discovery of extragalactic neutrino factories
Sara Buson, Andrea Tramacere, Leonard Pfeiffer +4
Neutrinos are the most elusive particles in the Universe, capable of traveling nearly unimpeded across it. Despite the vast amount of data collected, a long standing and unsolved i…