Results 91 to 100 of about 3,937 (188)

Rapid jet ejection from PKS 0215+015 coincident with a high-energy neutrino event

open access: yesAstronomy & Astrophysics
Aims. We present a new neutrino-blazar multiwavelength-flare coincidence, observed in the blazar PKS 0215+015 that showed a strong multiwavelength outburst in positional and temporal coincidence with the IceCube neutrino track alert IC220225A similar to ...
Eppel F.   +21 more
doaj   +1 more source

The Neutrino Option [PDF]

open access: yesProceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2017), 2017
Presentation from Neutrino Platform Week 2019: Hot Topics in Neutrino Physics, CERN, 7-11 October ...
openaire   +5 more sources

Multimessenger flare in the quasar PKS 0446+11

open access: yesAstronomy & Astrophysics
Context. The physical mechanisms driving neutrino and electromagnetic flares in blazars remain poorly understood. Aims. We investigate a prominent multimessenger flare in the quasar PKS 0446+11 to identify the processes responsible for its high-energy ...
Kovalev Y. Y.   +17 more
doaj   +1 more source

Excitation of the nonresonant streaming instability around sources of ultrahigh-energy cosmic rays

open access: yesAstronomy & Astrophysics
Aims. The interpretation of the ultrahigh-energy cosmic-ray (UHECR) spectrum and composition suggests a suppression of the flux below ≈1 EeV, as observed by the Pierre Auger Observatory and Telescope Array.
Cermenati Alessandro   +3 more
doaj   +1 more source

The physics case for neutrino–neutrino collisions

open access: yesJournal of Physics G: Nuclear and Particle Physics
Abstract Addressing the mass origin and properties of neutrinos is of strong interest to particle physics, baryogenesis and cosmology. Popular explanations involve physics beyond the standard model, for example, the dimension-5 Weinberg operator or heavy Majorana neutrinos arising from ‘seesaw’ models.
Sitian Qian   +8 more
openaire   +2 more sources

Supernovae and neutrinos [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 2003
Invited talk at the XXth International Conference on Neutrino Physics and Astrophysics (Neutrino 2002), Munich, Germany, May 25-30 ...
openaire   +2 more sources

Searching for Hadronic Signatures in the Time Domain of Blazar Emission: The Case of Mrk 501

open access: yesUniverse
Blazars—a subclass of active galaxies—are intrinsically time-variable broadband sources of electromagnetic radiation. In this contribution, we explored relativistic proton (hadronic) signatures in the time domain blazar emission and searched for those ...
Margaritis Chatzis   +3 more
doaj   +1 more source

Fast Radio Bursts as Sources of Ultra-High-Energy Cosmic Rays: A Multi-Messenger Review

open access: yesUniverse
Fast radio bursts (FRBs) are millisecond-duration radio transients of extragalactic origin, while ultra-high-energy cosmic rays (UHECRs; E≳1018 eV) remain among the most important unresolved problems in astroparticle physics.
Luiz Augusto Stuani Pereira
doaj   +1 more source

Antineutrinos from nuclear reactors: recent oscillation measurements

open access: yesNew Journal of Physics, 2015
Nuclear reactors are the most intense man-made source of antineutrinos, providing a useful tool for the study of these particles. Oscillation due to the neutrino mixing angle ${{\theta }_{13}}$ is revealed by the disappearance of reactor ${{\bar{\nu }}_ ...
D A Dwyer
doaj   +1 more source

Search for Multimessenger Sources of Gravitational Waves and High-energy Neutrinos with Advanced LIGO during Its First Observing Run, ANTARES, and IceCube

open access: yesThe Astrophysical Journal, 2019
Astrophysical sources of gravitational waves, such as binary neutron star and black hole mergers or core-collapse supernovae, can drive relativistic outflows, giving rise to non-thermal high-energy emission.
A. Albert   +1592 more
doaj   +1 more source

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