Results 111 to 120 of about 9,726 (203)

The lateral distribution of Cerenkov light in large cosmic ray showers as a measure of longitudinal development [PDF]

open access: yes, 1984
This thesis reports measurements made on the longitudinal cascade of high energy cosmic ray showers using observations of atmospheric Cerenkov light. The lateral distribution of the Cerenkov light shower has been shown to be one of the measurable ground ...
Craig, M.A.B, Craig, M
core  

Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy

open access: yes, 2016
Accepted for publication in Physical Review Letters (http://prl.aps.org), supplemental material in the ancillary filesInternational audienceWe measure the energy emitted by extensive air showers in the form of radio emission in the frequency range from ...
Figueira, Juan Manuel   +465 more
core   +1 more source

Where Did the Amaterasu Particle Come From?

open access: yesThe Astrophysical Journal Letters
The Telescope Array Collaboration recently reported the detection of a cosmic-ray particle, “Amaterasu,” with an extremely high energy of 2.4 × 10 ^20 eV. Here we investigate its probable charge and the locus of its production.
Michael Unger, Glennys R. Farrar
doaj   +1 more source

Ultra-High-energy Cosmic Ray Production in Binary Neutron Star Mergers

open access: yesThe Astrophysical Journal Letters
Having previously argued that binary neutron star (BNS) mergers are the principle source of ultra-high-energy cosmic rays (UHECRs), we exploit here the highly constrained initial conditions to make quantitative predictions for the cutoff energy of ...
Glennys R. Farrar
doaj   +1 more source

Publication Only

open access: yes
HemaSphere, Volume 10, Issue S1, June 2026.
wiley   +1 more source

The effects of atmosphere conditions on gamma-ray astronomy [PDF]

open access: yes, 2005
The High Energetic Stereoscopic System (H.E.S.S.) experiment is an array of imaging atmospheric Cherenkov (IAC) telescopes of the next generation, with enlarged mirrors and advanced detector electronics compared to its predecessors.
Aye, Klaus-Michael
core  

Constraining dark energy using real and mock galaxy surveys [PDF]

open access: yes, 2009
In this thesis, we study how dark energy may be constrained by measurements of large-scale clustering in future galaxy surveys, and through the imprint of a time-varying large-scale potential on the CMB (the integrated Sachs-Wolfe effect).
CAI, YANCHUAN
core  

Physics and Astrophysics with Ultra-High Energy Cosmic Radiation [PDF]

open access: yesProceedings of From Quantum to Emergent Gravity: Theory and Phenomenology — PoS(QG-Ph), 2008
openaire   +2 more sources

Composición de la radiación cósmica de ultra-alta energía a partir de los datos del Observatorio Pierre Auger (Composition of ultra-high energy cosmic radiation from the Pierre Auger Observatory data) [PDF]

open access: yes, 2011
Aunque el descubrimiento de los rayos cósmicos se produjo hace casi cien años, algunas de sus propiedades más importantes, como el origen, mecanismos de producción o composición en masa, son aún un misterio. Actualmente el conocimiento de los rayos cósmicos de baja energía es muy amplio, pero a energías superiores el desconocimiento es cada vez ...
openaire   +1 more source

Atmospheric monitoring for the H.E.S.S. experiment using a single scattering lidar [PDF]

open access: yes, 2009
The High Energy Stereoscopic System (H.E.S.S.) is an array of 4 telescopes located in Namibia, which use the imaging atmospheric Cherenkov technique (IACT) to study astrophysical emission of gamma radiation in the energy window from 100 GeV to 50 TeV ...
Rulten, Cameron Boyd
core  

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