The Cosmic Ray Energy Spectrum between 2 PeV and 2 EeV Observed with the TALE Detector in Monocular Mode [PDF]
Astrophysical Journal, 2018 We report on a measurement of the cosmic ray energy spectrum by the Telescope Array Low-Energy Extension (TALE) air fluorescence detector (FD). The TALE air FD is also sensitive to the Cherenkov light produced by shower particles. Low-energy cosmic rays,
R. Abbasi +140 more
semanticscholar +1 more source
On stability of fermionic superconducting current in cosmic string
Journal of High Energy Physics, 2021 Recently, the chiral superconductivity of the cosmic string in the axion model has gathered attention. The superconductive nature can alter the standard understanding of the cosmology of the axion model.
Masahiro Ibe +3 more
doaj +1 more source
The Density Spike in Cosmic-Ray-Modified Shocks: Formation, Evolution, and Instability [PDF]
, 1996 We examine the formation and evolution of the density enhancement (density spike) that appears downstream of strong, cosmic-ray-modified shocks. This feature results from temporary overcompression of the flow by the combined cosmic-ray shock precursor ...
Axford W. I. +12 more
core +3 more sources
Reverse direct detection: Cosmic ray scattering with light dark matter [PDF]
Physical Review D, 2018 Sub-GeV dark matter candidates are of increasing interest, because long-favored candidates such as GeV-scale WIMPs have not been detected. For low-mass dark matter, model-independent constraints are weak or nonexistent.
C. Cappiello, K. Ng, J. Beacom
semanticscholar +1 more source
Probing the Galactic cosmic ray flux with submillimeter and gamma ray data [PDF]
, 2008 The study of Galactic diffuse $\gamma$ radiation combined with the knowledge of the distribution of the molecular hydrogen in the Galaxy offers a unique tool to probe the cosmic ray flux in the Galaxy.
A. Kawamura +10 more
core +1 more source
Cosmic ray spectrum and composition from PeV to EeV using 3 years of data from IceTop and IceCube [PDF]
, 2019 We report on measurements of the all-particle cosmic ray energy spectrum and composition in the PeV to EeV energy range using 3 years of data from the IceCube Neutrino Observatory.
I. Collaboration
semanticscholar +1 more source
Cosmic-ray ionisation in circumstellar discs [PDF]
Astronomy & Astrophysics, 2018 Context. Galactic cosmic rays (CRs) are a ubiquitous source of ionisation of the interstellar gas, competing with UV and X-ray photons as well as natural radioactivity in determining the fractional abundance of electrons, ions, and charged dust grains in
M. Padovani +6 more
semanticscholar +1 more source
Galactic Center Observations with CTAO LST-1 [PDF]
EPJ Web of ConferencesVery-high-energy gamma-ray observations of the central part of the Milky Way Galaxy allow for morphological study of cosmic-ray propagation around the supermassive black hole Sgr A*. An interpretation of the diffuse gamma-ray component, which spans a few
Abe Shotaro +6 more
doaj +1 more source
Light Element Evolution and Cosmic Ray Energetics [PDF]
, 1999 Using cosmic-ray energetics as a discriminator, we investigate evolutionary models of LiBeB. We employ a Monte Carlo code which incorporates the delayed mixing into the ISM both of the synthesized Fe, due to its incorporation into high velocity dust ...
Benzion Kozlovsky +24 more
core +2 more sources
Discovery of a big void in Khufu’s Pyramid by observation of cosmic-ray muons [PDF]
Nature, 2017 The Great Pyramid, or Khufu’s Pyramid, was built on the Giza plateau in Egypt during the fourth dynasty by the pharaoh Khufu (Cheops), who reigned from 2509 bc to 2483 bc.
K. Morishima +33 more
semanticscholar +1 more source