most citedCharacterization of the Astrophysical Diffuse Neutrino Flux using Starting Track Events in IceCube

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astro-ph.HE2025

Constraints on the Population of Common Sources of Gravitational Waves and High-Energy Neutrinos with IceCube During the Third Observing Run of the LIGO and Virgo Detectors

Doğa Veske, Zsuzsa Márka, Albert Zhang

The discovery of joint sources of high-energy neutrinos and gravitational waves has been a primary target for the LIGO, Virgo, KAGRA, and IceCube observatories. The joint detection…

astro-ph.HE2025

Constraints on the Correlation of IceCube Neutrinos with Tracers of Large-Scale Structure

R. Abbasi, M. Ackermann, J. Adams +430

The IceCube Neutrino Observatory has observed extragalactic astrophysical neutrinos with an apparently isotropic distribution. Only a small fraction of the observed astrophysical n…

astro-ph.HE2025★ 12 cited

Evidence for Neutrino Emission from X-Ray-bright Active Galactic Nuclei with IceCube

R. Abbasi, M. Ackermann, J. Adams +429

Recently, IceCube reported neutrino emission from the Seyfert galaxy NGC 1068. Using 13.1 years of IceCube data, we present a follow-up search for neutrino sources in the northern…

astro-ph.HE2025

The IceCube Collaboration -- Contributions to the 39th International Cosmic Ray Conference (ICRC2025)

R. Abbasi, M. Ackermann, J. Adams +426

The IceCube Observatory at the South Pole has been operating in its full configuration since May 2011 with a duty cycle of about 99%. Its main component consists of a cubic-kilomet…

astro-ph.HE2025

Probing neutrino emission at GeV energies from compact binary mergers detected during O1-O4a with the IceCube Neutrino Observatory

Karlijn Kruiswijk, Mathieu Lamoureux, Matthias Vereecken +1

Compact binary mergers, detected in gravitational waves since 2015, are candidate sources for astrophysical neutrinos in the GeV regime from proton-proton and proton-neutron collis…

astro-ph.HE2025

Measurement of the Three-Flavor Composition of Astrophysical Neutrinos with Contained IceCube Events

Aswathi Balagopal V., Vedant Basu, Albrecht Karle

The IceCube Neutrino Observatory at the South Pole detects neutrinos from the entire sky, both of astrophysical and atmospheric origin, via the Cherenkov light emitted when these n…

astro-ph.HE2025

Results from IceCube Follow-up of Nearby Supernova SN2023ixf

Alicia Mand, Justin Vandenbroucke, Jessie Thwaites +2

Core-collapse supernovae are of particular interest in multi-messenger astronomy due to their potential to accelerate cosmic rays and produce high-energy neutrinos. One such supern…

astro-ph.HE2025★ 2 cited

Measurement of the Diffuse Astrophysical Neutrino Spectrum above a TeV with All Flavor Starting Events in IceCube

Vedant Basu, Aswathi Balagopal V., Albrecht Karle

The IceCube Neutrino Observatory utilizes the Cherenkov radiation emitted by charged secondary particles produced in interactions of neutrinos with ice nucleons to detect neutrino…

astro-ph.HE2025

A Search for Millimeter-Bright Blazars as Astrophysical Neutrino Sources

R. Abbasi, M. Ackermann, J. Adams +424

The powerful jets of blazars have been historically considered as likely sites of high-energy cosmic-ray acceleration. However, particulars of the launched jet and the locations of…

astro-ph.HE2025★ 11 cited

Improved measurements of the TeV-PeV extragalactic neutrino spectrum from joint analyses of IceCube tracks and cascades

R. Abbasi, M. Ackermann, J. Adams +424

The IceCube South Pole Neutrino Observatory has discovered the presence of a diffuse astrophysical neutrino flux at energies of TeV and beyond using neutrino induced muon tracks an…

astro-ph.HE2025★ 14 cited

Evidence for a Spectral Break or Curvature in the Spectrum of Astrophysical Neutrinos from 5 TeV--10 PeV

R. Abbasi, M. Ackermann, J. Adams +424

We report improved measurements of the all flavor astrophysical neutrino spectrum with IceCube by combining complementary neutrino samples in two independent analyses. Both analyse…

astro-ph.HE2025★ 3 cited

All-sky neutrino point-source search with IceCube combined track and cascade data

R. Abbasi, M. Ackermann, J. Adams +424

Despite extensive efforts, discovery of high-energy astrophysical neutrino sources remains elusive. We present an event-level simultaneous maximum likelihood analysis of tracks and…

astro-ph.HE2025★ 4 cited

VERITAS and multiwavelength observations of the Blazar B3 2247+381 in response to an IceCube neutrino alert

Atreya Acharyya, Colin B. Adams, Priyadarshini Bangale +494

While the sources of the diffuse astrophysical neutrino flux detected by the IceCube Neutrino Observatory are still largely unknown, one of the promising methods used towards under…

astro-ph.HE2025

Probing the PeV Region in the Astrophysical Neutrino Spectrum using from the Southern Sky

R. Abbasi, M. Ackermann, J. Adams +425

IceCube has observed a diffuse astrophysical neutrino flux over the energy region from a few TeV to a few PeV. At PeV energies, the spectral shape is not yet well measured due to t…

astro-ph.HE2025★ 1 cited

Seasonal Variations of the Atmospheric Muon Neutrino Spectrum measured with IceCube

R. Abbasi, M. Ackermann, J. Adams +425

This study presents an energy-dependent analysis of seasonal variations in the atmospheric muon neutrino spectrum, using 11.3 years of data from the IceCube Neutrino Observatory. B…

astro-ph.HE2025★ 37 cited

Search for Extremely-High-Energy Neutrinos and First Constraints on the Ultrahigh-Energy Cosmic-Ray Proton Fraction with IceCube

IceCube Collaboration, R. Abbasi, M. Ackermann +423

We present a search for the diffuse extremely-high-energy neutrino flux using years of IceCube data. The nonobservation of neutrinos with energies well above $10 \, \mathrm{…

astro-ph.HE2025

Time-Integrated Southern-Sky Neutrino Source Searches with 10 Years of IceCube Starting-Track Events at Energies Down to 1 TeV

R. Abbasi, M. Ackermann, J. Adams +423

In the IceCube Neutrino Observatory, a signal of astrophysical neutrinos is obscured by backgrounds from atmospheric neutrinos and muons produced in cosmic-ray interactions. IceCub…

astro-ph.HE2025★ 3 cited

Search for neutrino doublets and triplets using 11.4 years of IceCube data

R. Abbasi, M. Ackermann, J. Adams +423

We report a search for high-energy astrophysical neutrino multiplets, detections of multiple neutrino clusters in the same direction within 30 days, based on an analysis of 11.4 ye…

astro-ph.HE2024★ 8 cited

Observation of Cosmic-Ray Anisotropy in the Southern Hemisphere with 12 yr of Data Collected by the IceCube Neutrino Observatory

R. Abbasi, M. Ackermann, J. Adams +434

We analyzed the 7.92 cosmic-ray-induced muon events collected by the IceCube Neutrino Observatory from May 13, 2011, when the fully constructed experiment started t…

astro-ph.HE2024★ 10 cited

Probing the connection between IceCube neutrinos and MOJAVE AGN

R. Abbasi, M. Ackermann, J. Adams +420

Active Galactic Nuclei (AGN) are prime candidate sources of the high-energy, astrophysical neutrinos detected by IceCube. This is demonstrated by the real-time multi-messenger dete…

astro-ph.HE2024

Search for neutrino emission from hard X-ray AGN with IceCube

R. Abbasi, M. Ackermann, J. Adams +422

Active Galactic Nuclei (AGN) are promising candidate sources of high-energy astrophysical neutrinos since they provide environments rich in matter and photon targets where cosmic r…

astro-ph.HE2024

IceCube Search for Neutrino Emission from X-ray Bright Seyfert Galaxies

R. Abbasi, M. Ackermann, J. Adams +421

The recent IceCube detection of TeV neutrino emission from the nearby active galaxy NGC 1068 suggests that active galactic nuclei (AGN) could make a sizable contribution to the dif…

astro-ph.HE2024★ 6 cited

Search for joint multimessenger signals from potential galactic cosmic-ray accelerators with HAWC and IceCube

R. Alfaro, C. Alvarez, J. C. Arteaga-Velázquez +489

The origin of high-energy galactic cosmic rays is yet to be understood, but some galactic cosmic-ray accelerators can accelerate cosmic rays up to PeV energies. The high-energy cos…

astro-ph.HE2024★ 9 cited

Improved modeling of in-ice particle showers for IceCube event reconstruction

R. Abbasi, M. Ackermann, J. Adams +415

The IceCube Neutrino Observatory relies on an array of photomultiplier tubes to detect Cherenkov light produced by charged particles in the South Pole ice. IceCube data analyses de…