| Thème(s) : |
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| Titre : |
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Ultrahigh energy cosmic rays and the GeV-TeV diffuse gamma-ray flux |
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| Auteur : |
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O.E. Kalashev, D.V. Semikoz1, G. Sigl1 |
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| Laboratoire : |
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| équipe(s) de recherche : |
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APC - THEORIE |
| Résumé : |
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Ultra-high energy cosmic ray protons accelerated in astrophysical objects produce secondary electromagnetic cascades during propagation in the cosmic microwave and infrared backgrounds. We show that such cascades can contribute between ~1% and ~50% of the GeV-TeV diffuse photon flux measured by the EGRET experiment. The GLAST satellite should have a good chance to discover this flux. |
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| Type de publication : |
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Articles dans des revues avec comité de lecture |
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Date de publication ou d'écriture : |
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2009 |
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| Nom du périodique : |
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| Physical Review D (Phys. Rev. D) |
| Publisher |
American Physical Society |
| ISSN |
1550-7998 (eISSN : 1550-2368) |
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| Volume : |
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79 |
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| Page/Article : |
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063005 |
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| Identifiant local : |
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APC-07-28 |
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| Classification PACS : |
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98.70.Sa, 98.70.Vc |
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| Commentaire : |
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4 pages, 5 figures |
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| Mot(s)-clé(s) : |
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Cosmic rays – Background radiations |
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