Results 151 to 160 of about 126,463 (267)

Search for Galactic cosmic ray sources: The multimessenger approach

open access: yesEPJ Web of Conferences, 2015
The search for the sources of high-energy cosmic rays (CRs) has made significant progress the past decade. By including multimessenger methods, the general picture of the presence of a Galactic component at low energies and an extragalactic one at the ...
Becker Tjus Julia
doaj   +1 more source

The origin of galactic cosmic rays [PDF]

open access: yesNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2008
Invited talk given at the Roma International Conference on Astro-Particle physics (RICAP07) June 20th - 22nd, 2007.
openaire   +2 more sources

Angular Power Spectrum of TeV–PeV Cosmic-Ray Anisotropies

open access: yesThe Astrophysical Journal
Simulations of the cosmic-ray (CR) anisotropy down to TeV energies are presented, using turbulence parameters consistent with those inferred from observations of the interstellar medium.
Wenyi Bian   +2 more
doaj   +1 more source

Very High Energy Gamma-Rays from Binary Systems [PDF]

open access: yes, 2010
This thesis presents a study of the very high energy (VHE) gamma-ray emission from X-ray binary systems using the H.E.S.S. imaging atmospheric Cherenkov array.
DICKINSON, HUGH,JOHN   +1 more
core  

Advancing Precision Particle Background Estimation for Future X-Ray Missions: Correlated Variability between the Alpha Magnetic Spectrometer and Chandra/XMM-Newton

open access: yesThe Astrophysical Journal
Galactic cosmic-ray (GCR) particles have a significant impact on the particle-induced background of X-ray observatories, and their flux exhibits substantial temporal variability, potentially influencing background levels.
Arnab Sarkar   +11 more
doaj   +1 more source

Overestimation of Astrophysical Gamma-Ray Energies during Thunderstorms: Synergy of Galactic and Atmospheric Accelerators

open access: yesThe Astrophysical Journal Letters
Particle accelerators abound in space plasmas, saturating the cosmos with fully stripped nuclei and gamma rays, with energies surpassing the capabilities of human-made accelerators by orders of magnitude. Upon reaching Earth’s atmosphere, these particles
A. Chilingarian, M. Zazyan
doaj   +1 more source

Search for Joint Multimessenger Signals from Potential Galactic Cosmic-Ray Accelerators with HAWC and IceCube

open access: yesThe Astrophysical Journal
The origin of high-energy galactic cosmic rays is yet to be understood, but some galactic cosmic-ray accelerators can accelerate cosmic rays up to PeV energies.
R. Alfaro   +495 more
doaj   +1 more source

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