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  Identifying Nearby Accelerators of Ultrahigh Energy Cosmic Rays Using Ultrahigh Energy (and Very High Energy) Photons

Taylor, A., Hinton, J. A., Blasi, P., & Ave, M. (2009). Identifying Nearby Accelerators of Ultrahigh Energy Cosmic Rays Using Ultrahigh Energy (and Very High Energy) Photons. Physical Review Letters, 103(5): 051102, pp. 1-4. doi:10.1103/PhysRevLett.103.051102.

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Taylor, Andrew1, Author           
Hinton, J. A.1, Author           
Blasi, P.2, Author
Ave, M.2, Author
Affiliations:
1Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society, ou_904550              
2School of Physics & Astronomy, University of Leeds, Leeds LS2 9JT, United Kingdom INAF/Osservatorio Astrofisico di Arcetri Largo E. Fermi, 5 50125 Firenze, Italy Excellence Cluster Universe, Technische Universität München, Boltzmannstrasse 2, D-85748, Garching, Germany and University of Chicago, Enrico Fermi Institute, Chicago, Illinois, USA, ou_persistent22              

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 Abstract: Ultrahigh energy photons (UHE, E>1019 eV) are inevitably produced during the propagation of ~1020 eV protons in extragalactic space. Their short interaction lengths (<20 Mpc) at these energies, combined with the impressive sensitivity of the Pierre Auger Observatory detector to these particles, makes them an ideal probe of nearby ultrahigh energy cosmic ray (UHECR) sources. We here discuss the particular case of photons from a single nearby (within 30 Mpc) source in light of the possibility that such an object might be responsible for several of the UHECR events published by the Auger collaboration. We demonstrate that the photon signal accompanying a cluster of a few >6×1019 eV UHECRs from such a source should be detectable by Auger in the near future. The detection of these photons would also be a signature of a light composition of the UHECRs from the nearby source.

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Language(s): eng - English
 Dates: 2009-07-29
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 438369
DOI: 10.1103/PhysRevLett.103.051102
 Degree: -

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Title: Physical Review Letters
  Alternative Title : Phys.Rev.Lett.
Source Genre: Journal
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Pages: - Volume / Issue: 103 (5) Sequence Number: 051102 Start / End Page: 1 - 4 Identifier: -