Results 81 to 90 of about 44,470 (237)

Interpretation of the Observed Neutrino Emission from Three Tidal Disruption Events

open access: yesThe Astrophysical Journal, 2023
Three Tidal Disruption Event candidates (AT2019 dsg , AT2019 fdr , and AT2019 aalc ) have been associated with high-energy astrophysical neutrinos in multimessenger follow-ups.
Walter Winter, Cecilia Lunardini
doaj   +1 more source

On the Self‐Quenching of Relativistic Runaway Electron Avalanches Producing Terrestrial Gamma Ray Flashes

open access: yesGeophysical Research Letters, Volume 51, Issue 10, 28 May 2024.
Abstract Terrestrial gamma ray flashes (TGFs) are short bursts of gamma rays occurring during thunderstorms. They are believed to be produced by relativistic runaway electron avalanches (RREAs). It is usually admitted that the number of high‐energy electrons produced in the brightest TGFs remains mostly confined within a range from 1017 to 1019.
P. Gourbin, S. Celestin
wiley   +1 more source

High energy neutrino astronomy

open access: yesNuclear Physics B - Proceedings Supplements, 2002
Abstract After a long period of development, high energy neutrino astrophysics is approaching a level of sensitivity which reaches below the upper bounds on extraterrestrial neutrino fluxes derived from observed fluxes of cosmics rays and gamma rays.
openaire   +5 more sources

The Giant Radio Array for Neutrino Detection

open access: yesEPJ Web of Conferences, 2016
High-energy neutrino astronomy will probe the working of the most violent phenomena in the Universe. The Giant Radio Array for Neutrino Detection (GRAND) project consists of an array of ∼ 105 radio antennas deployed over ∼ 200 000 km2 in a mountainous ...
Martineau-Huynh Olivier   +22 more
doaj   +1 more source

Search for Astrophysical Electron Antineutrinos in Super-Kamiokande with 0.01% Gadolinium-loaded Water

open access: yesThe Astrophysical Journal Letters, 2023
We report the first search result for the flux of astrophysical electron antineutrinos for energies ${ \mathcal O }(10)\,\mathrm{MeV}$ in the gadolinium-loaded Super-Kamiokande (SK) detector. In 2020 June, gadolinium was introduced to the ultrapure water
M. Harada   +242 more
doaj   +1 more source

Self Consistent Modeling of Relativistic Runaway Electron Beams Giving Rise to Terrestrial Gamma‐Rays Flashes

open access: yesJournal of Geophysical Research: Space Physics, Volume 129, Issue 5, May 2024.
Abstract Terrestrial Gamma Ray Flashes (TGFs) are short bursts of gamma rays occurring during thunderstorms. They are believed to be produced by Relativistic Runaway Electron Avalanches (RREAs). In this paper, we present a new numerical model based on the Particle‐In‐Cell (PIC) method to simulate the interactions between the electromagnetic fields and ...
P. Gourbin, S. Celestin
wiley   +1 more source

Probing particle physics with IceCube

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
The IceCube observatory located at the South Pole is a cubic-kilometre optical Cherenkov telescope primarily designed for the detection of high-energy astrophysical neutrinos.
Markus Ahlers   +2 more
doaj   +1 more source

High-Energy Neutrinos from Cosmic Rays

open access: yes, 2002
We introduce neutrino astronomy from the observational fact that Nature accelerates protons and photons to energies in excess of 10^{20} and 10^{13} eV, respectively. Although the discovery of cosmic rays dates back close to a century, we do not know how
Halzen, F.
core   +2 more sources

Effects of Forbush Decreases on the Global Electric Circuit

open access: yesSpace Weather, Volume 22, Issue 4, April 2024.
Abstract The suppression of high‐energy cosmic rays, known as Forbush decreases (FDs), represents a promising factor in influencing the global electric circuit (GEC) system. Researchers have delved into these effects by examining variations, often disruptive, of the potential gradient (PG) in ground‐based measurements taken in fair weather regions.
J. Tacza, G. Li, J.‐P. Raulin
wiley   +1 more source

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