Astrophysical Accelerators of Ultrahigh Energy Cosmic Rays

Journal Article · Thu Aug 28 00:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2981542· OSTI ID:21152420

Inoue, Susumu ^[1]

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1. Dept. of Physics, Kyoto University, Oiwake-cho, Kitashirakawa, Sakyo-ku, Kyoto 606-8502 (Japan)

We discuss the origin of ultra-high energy cosmic rays in light of the latest observational results from the Pierre Auger Observatory, highlighting potential astrophysical sources such as active galactic nuclei, gamma-ray bursts, and clusters of galaxies. Key issues include their energy budget, the acceleration and escape of protons and nuclei, and their propagation in extragalactic radiation and magnetic fields. We briefly address the prospects for Telescope Array and future facilities such as JEM-EUSO, and also emphasize the importance of multi-messenger X-ray and gamma-ray signatures in addition to neutrinos as diagnostic tools for source identification.

• OSTI ID: 21152420
• Journal Information: AIP Conference Proceedings, Vol. 1040, Issue 1; Conference: KEK Cosmophysics Group inaugural conference on accelerators in the Universe: Interplay between high energy physics and cosmophysics, Tsukuba (Japan), 12-14 Mar 2008; Other Information: DOI: 10.1063/1.2981542; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATION
ASTROPHYSICS
COSMIC GAMMA BURSTS
COSMIC NEUTRINOS
COSMIC NUCLEI
COSMIC RAY DETECTION
GALAXY CLUSTERS
GALAXY NUCLEI
GAMMA RADIATION
MAGNETIC FIELDS
PROTONS
TELESCOPE COUNTERS
X RADIATION