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          Institute: MPI für Kernphysik     Collection: High-Energy Astrophysics     Display Documents



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ID: 276598.0, MPI für Kernphysik / High-Energy Astrophysics
Pointlike Gamma Ray Sources as Signatures of Distant Accelerators of Ultrahigh Energy Cosmic Rays
Authors:Gabici, Stefano; Aharonian, Felix A.
Language:English
Date of Publication (YYYY-MM-DD):2005-12-15
Title of Journal:Physical Review Letters
Volume:95
Issue / Number:25
Start Page:1
End Page:4
Sequence Number of Article:251102
Copyright:©2005 The American Physical Society
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:We discuss the possibility of observing distant accelerators of ultrahigh energy cosmic rays in synchrotron gamma rays. Protons propagating away from their acceleration sites produce extremely energetic electrons during photopion interactions with cosmic microwave background photons. If the accelerator is embedded in a magnetized region, these electrons will emit high energy synchrotron radiation. The resulting synchrotron source is expected to be pointlike, steady, and detectable in the GeV-TeV energy range if the magnetic field is at the nanoGauss level.
External Publication Status:published
Document Type:Article
Affiliations:MPI für Kernphysik/Group H. J. Völk/High Energy Astrophysics (F. Aharonian)
Identifiers:DOI:10.1103/PhysRevLett.95.251102
URL:http://link.aps.org/abstract/PRL/v95/e251102
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