Results 51 to 60 of about 181,166 (278)
Cosmic-Ray Boosted Diffuse Supernova Neutrinos
AstronomyThe subject of boosted fluxes of dark matter or cosmic relic neutrinos via scattering on cosmic rays has received considerable attention recently. This article investigates the boosted neutrino flux from the scattering of cosmic rays and the so-far ...
Alexander Sandrock
doaj +1 more source
The mass composition of cosmic rays measured with LOFAR
EPJ Web of Conferences, 2017 High-energy cosmic rays, impinging on the atmosphere of the Earth initiate cascades of secondary particles, the extensive air showers. The electrons and positrons in the air shower emit electromagnetic radiation.
Hörandel Jörg R. +15 more
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Origin of Galactic Cosmic Rays [PDF]
, 2012 The origin of the bulk of cosmic rays (CRs) observed at Earth is the topic of a century long investigation, paved with successes and failures. From the energetic point of view, supernova remnants (SNRs) remain the most plausible sources of CRs up to ...
Blasi, Pasquale
core +1 more source
On the radial distribution of Galactic cosmic rays [PDF]
, 2016 The spectrum and morphology of the diffuse Galactic gamma-ray emission carries valuable information on cosmic ray (CR) propagation. Recent results obtained by analyzing Fermi-LAT data accumulated over seven years of observation show a substantial ...
S. Recchia, P. Blasi, G. Morlino
semanticscholar +1 more source
Possible Counterpart Signal of the Fermi Bubbles at the Cosmic-Ray Positrons
The Astrophysical Journal, 2023 The inner Galaxy has hosted cosmic-ray burst events, including those responsible for the gamma-ray Fermi bubbles and the eROSITA bubbles in X-rays. In this work, we study the Alpha Magnetic Spectrometer positron fraction and find three features around 12,
Ilias Cholis, Iason Krommydas
doaj +1 more source
Origin of very high and ultra high energy cosmic rays [PDF]
, 2014 While there is some level of consensus on a Galactic origin of cosmic rays up to the knee ($E_{k}\sim 3\times 10^{15}$ eV) and on an extragalactic origin of cosmic rays with energy above $\sim 10^{19}$ eV, the debate on the genesis of cosmic rays in the ...
Blasi, Pasquale
core +2 more sources
Selected Topics in Cosmic Ray Physics
, 2017 The search for the origin of cosmic rays is as active as ever, mainly driven by new insights provided by recent pieces of observation. Much effort is being channelled in putting the so called supernova paradigm for the origin of galactic cosmic rays on ...
Aloisio, R. +3 more
core +1 more source
The Dipole Anisotropy of Galactic Cosmic Rays [PDF]
, 2018 The arrival directions of Galactic cosmic rays exhibit anisotropies up to the level of one per-mille over various angular scales. Recent observations of TeV-PeV cosmic rays show that the dipole anisotropy has a strong energy dependence with a phase-flip ...
Ahlers, Markus
core +2 more sources
Sagittarius A* as an origin of the Galactic PeV cosmic rays? [PDF]
, 2016 Supernova remnants (SNRs) have commonly been considered as a source of the observed PeV cosmic rays (CRs) or a Galactic PeV particle accelerator ("Pevatron").
Y. Fujita, K. Murase, S. Kimura
semanticscholar +1 more source
Fast Neutron Detector Based on Hybrid 2D Perovskite Thin Films
Advanced Functional Materials, EarlyView.This work presents the direct detection of fast neutrons using flexible hybrid 2D perovskite (PEA2PbBr4) thin‐film detectors. Thanks to their high low‐Z elements content and good charge transport, these materials enable efficient neutron detection. The thin film configuration allowed the operation at low voltage, and offer scalability, flexibility, and
Ilaria Fratelli +11 more
wiley +1 more source