Results 21 to 30 of about 17,365 (298)

NUCLEAR AND HIGH-ENERGY ASTROPHYSICS [PDF]

open access: yesHadron Physics 2002, 2003
52 pages, 43 figures; to appear in the Proceedings of the VIII International Workshop on Hadron Physics, April 14-19, 2002, Rio Grande do Sul ...
openaire   +2 more sources

Phase transitions and geothermodynamics of black holes in dRGT massive gravity

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
In this paper, we study the thermodynamics and geothermodynamics of spherical black hole solutions in dRGT massive gravity in a new extended phase space. Inspire by the work of Kastor et al.
M. Chabab   +3 more
doaj   +1 more source

High-energy astrophysics and cosmology [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 2003
12 pages, 16 eps figures, uses espcrc2.sty. Talk presented at the XIIth International Symposium on Very-High-Energy Cosmic-Ray Interactions, CERN, July ...
openaire   +2 more sources

High energy neutrino astrophysics [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 2005
Astroparticle physics is a field rich of perspectives in investigating the ultra-high energy region which will never be accessible to man made machines. Many efforts are underway in order to detect the first cosmic neutrinos, messengers of the unobserved universe.
openaire   +2 more sources

HIGH-ENERGY ASPECTS OF ASTROPHYSICAL JETS [PDF]

open access: yesInternational Journal of Modern Physics A, 2006
Various aspects of the high-energy emission from relativistic jets associated with compact astrophysical systems are reviewed. The main leptonic and hadronic processes responsible for the production of high-energy γ-rays, very-high-energy neutrinos and ultra-high energy cosmic rays are discussed.
openaire   +3 more sources

Updates on the Hotspot and the Perseus-Pisces supercluster Excess Observed by the Telescope Array Experiment [PDF]

open access: yesEPJ Web of Conferences, 2023
The Telescope Array (TA) experiment, the largest observatory studying ultra-high energy cosmic rays in the northern hemisphere, has reported evidence for two medium-scale anisotropies.
Kim Jihyun   +4 more
doaj   +1 more source

High Energy Astrophysics

open access: yesOyo Buturi, 1982
In view of the broad range of topics covered by Commission 48 and the consequent inevitable overlap with other commissions, it is not feasible to produce a comprehensive self-contained report. The commission therefore restricts its report to a selected list of accessible recent review articles and conference reports, where up-to-date summaries of ...
DOKE, Tadayoshi, MATSUOKA, Masaru
  +4 more sources

Soft scattering evaporation of dark matter subhalos by inner galactic gases

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
The large gap between a galactic dark matter subhalo’s velocity and its own gravitational binding velocity creates the situation that small subhalos can be evaporated before dark matter thermalize with baryons due to the low binding velocity.
Xiao-jun Bi   +4 more
doaj   +1 more source

Fermi-LAT Observation of PSR B1259-63 during Its 2021 Periastron Passage

open access: yesUniverse, 2021
PSR B1259-63 is a γ-ray binary system, where the compact object is a pulsar. The system has an orbital period of 1236.7 days and shows peculiar γ-ray flares (in 100 MeV–300 GeV) after its periastron time.
Zhi Chang   +5 more
doaj   +1 more source

Decay of High-Energy Astrophysical Neutrinos [PDF]

open access: yesPhysical Review Letters, 2003
Existing limits on the non-radiative decay of one neutrino to another plus a massless particle (e.g., a singlet Majoron) are very weak. The best limits on the lifetime to mass ratio come from solar neutrino observations, and are $τ/m \agt 10^{-4}$ s/eV for the relevant mass eigenstate(s).
Beacom, John F.   +4 more
openaire   +3 more sources

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