activity
20202026
most citedObservational evidence for the origin of high-energy neutrinos in parsec-scale nuclei of radio-bright active galaxies

149 citations · 428 across the 29 of their papers we have counts for

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Showing astro-ph.HEShow all

20 papers · 1 filter

astro-ph.HE2025

Optimizing the potential of KM3NeT in detecting core-collapse supernovae

KM3NeT Collaboration, O. Adriani, A. Albert +285

Core-collapse supernovae mark the end of life of massive stars. However, despite their importance in astrophysics, their underlying mechanisms remain unclear. Neutrinos that emerge…

astro-ph.HE2025★ 3 cited

Multi-messenger flare in the quasar PKS 0446+11

Y. Y. Kovalev, M. F. Aller, A. K. Erkenov +15

The physical mechanisms driving neutrino and electromagnetic flares in blazars remain poorly understood. We investigate a prominent multi-messenger flare in the quasar PKS 1424+240…

astro-ph.HE2025

Constraining gamma-ray burst parameters with the first ultra-high energy neutrino event KM3-230213A

KM3NeT Collaboration, O. Adriani, A. Albert +278

Context: The detection of the highest energy neutrino observed to date by KM3NeT, with an estimated energy of 220 PeV, opens up new possibilities for the study and identification o…

astro-ph.HE2025★ 8 cited

Looking into the Jet Cone of the Neutrino-Associated Very High Energy Blazar PKS 1424+240

Y. Y. Kovalev, A. B. Pushkarev, J. L. Gomez +7

The acceleration process of massive particles as well as the production of very high energy (VHE) photons and neutrinos remains a fundamental challenge in astrophysics. We investig…

astro-ph.HE2025★ 3 cited

Extreme Jet Beaming Observed in Neutrino-Associated Blazars

Alexander V. Plavin, Yuri Y. Kovalev, Sergey V. Troitsky

Bright blazars were found to be prominent neutrino sources, and a number of IceCube events were associated with them over recent years. A particularly strong observational connecti…

astro-ph.HE2025★ 2 cited

KM3NeT Constraint on Lorentz-Violating Superluminal Neutrino Velocity

KM3NeT Collaboration, O. Adriani, S. Aiello +290

Lorentz invariance is a fundamental symmetry of spacetime and foundational to modern physics. One of its most important consequences is the constancy of the speed of light. This in…

astro-ph.HE2025★ 2 cited

On the Potential Galactic Origin of the Ultra-High-Energy Event KM3-230213A

O. Adriani, S. Aiello, A. Albert +286

The KM3NeT observatory detected the most energetic neutrino candidate ever observed, with an energy between 72 PeV and 2.6 EeV at the 90% confidence level. The observed neutrino is…

astro-ph.HE2025

On the potential cosmogenic origin of the ultra-high-energy event KM3-230213A

The KM3NeT collaboration

On the 13th February 2023 the KM3NeT/ARCA telescope observed a track-like event compatible with a ultra-high-energy muon with an estimated energy of 120 PeV, produced by a neutrino…

astro-ph.HE2025

The ultra-high-energy event KM3-230213A within the global neutrino landscape

KM3NeT Collaboration, O. Adriani, S. Aiello +290

On February 13th, 2023, the KM3NeT/ARCA telescope detected a neutrino candidate with an estimated energy in the hundreds of PeVs. In this article, the observation of this ultra-hig…

astro-ph.HE2024

First Searches for Dark Matter with the KM3NeT Neutrino Telescopes

KM3NeT Collaboration, S. Aiello, A. Albert +262

Indirect dark matter detection methods are used to observe the products of dark matter annihilations or decays originating from astrophysical objects where large amounts of dark ma…

astro-ph.HE2024★ 9 cited

Probing the Galactic neutrino flux at neutrino energies above 200 TeV with the Baikal Gigaton Volume Detector

V. A. Allakhverdyan, A. D. Avrorin, A. V. Avrorin +67

Recent observations of the Galactic component of the high-energy neutrino flux, together with the detection of the diffuse Galactic gamma-ray emission up to sub-PeV energies, open…

astro-ph.HE2023★ 2 cited

Diffuse neutrino flux measurements with the Baikal-GVD neutrino telescope

V. M. Aynutdinov, V. A. Allakhverdyan, A. D. Avrorin +68

Baikal-GVD is a next generation, kilometer-scale neutrino telescope currently under construction in Lake Baikal. GVD consists of multi-megaton subarrays (clusters) and is designed…

astro-ph.HE2023★ 16 cited

Searches for neutrinos in the direction of radio-bright blazars with the ANTARES telescope

ANTARES Collaboration, A. Albert, S. Alves +162

Active galaxies, especially blazars, are among the most promising neutrino source candidates. To date, ANTARES searches for these objects considered GeV-TeV -ray bright blazars.…

astro-ph.HE2023★ 22 cited

Search for directional associations between Baikal Gigaton Volume Detector neutrino-induced cascades and high-energy astrophysical sources

V. A. Allakhverdyan, A. D. Avrorin, A. V. Avrorin +65

Baikal-GVD has recently published its first measurement of the diffuse astrophysical neutrino flux, performed using high-energy cascade-like events. We further explore the Baikal-G…

astro-ph.HE2023

Baikal-GVD Astrophysical Neutrino Candidate near the Blazar TXS~0506+056

V. M. Aynutdinov, V. A. Allakhverdyan, A. D. Avrorin +71

We report on the observation of a rare neutrino event detected by Baikal-GVD in April 2021. The event GVD210418CA is the highest-energy cascade observed by Baikal-GVD so far from t…

astro-ph.HE2023★ 7 cited

Hard X-ray emission from blazars associated with high-energy neutrinos

A. V. Plavin, R. A. Burenin, Y. Y. Kovalev +4

Bright blazars were found to be prominent neutrino sources, and a number of IceCube events were associated with them. Evaluating high-energy photon emission of such blazars is cruc…

astro-ph.HE2022★ 63 cited

Diffuse neutrino flux measurements with the Baikal-GVD neutrino telescope

Baikal Collaboration, V. A. Allakhverdyan, A. D. Avrorin +55

We report on the first observation of the diffuse cosmic neutrino flux with the Baikal-GVD neutrino telescope. Using cascade-like events collected by Baikal-GVD in 2018--2021, a si…

astro-ph.HE2022★ 38 cited

Galactic contribution to the high-energy neutrino flux found in track-like IceCube events

Y. Y. Kovalev, A. V. Plavin, S. V. Troitsky

Astrophysical sources of neutrinos detected by large-scale neutrino telescopes remain uncertain. While there exist statistically significant observational indications that a part o…

astro-ph.HE2020★ 104 cited

Directional association of TeV to PeV astrophysical neutrinos with radio blazars

A. V. Plavin, Y. Y. Kovalev, Y. A. Kovalev +1

Recently we have shown that high-energy neutrinos above 200 TeV detected by IceCube are produced within several parsecs in the central regions of radio-bright blazars, that is acti…

astro-ph.HE2020★ 149 cited

Observational evidence for the origin of high-energy neutrinos in parsec-scale nuclei of radio-bright active galaxies

A. V. Plavin, Y. Y. Kovalev, Y. A. Kovalev +1

Observational information on high-energy astrophysical neutrinos is being continuously collected by the IceCube observatory. However, the sources of neutrinos are still unknown. In…