Statistics of clustering of ultrahigh energy cosmic rays and the number of their sources.
Détails
ID Serval
serval:BIB_14181
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Statistics of clustering of ultrahigh energy cosmic rays and the number of their sources.
Périodique
Physical Review Letters
ISSN
0031-9007
Statut éditorial
Publié
Date de publication
2000
Volume
85
Numéro
6
Pages
1154-1157
Langue
anglais
Résumé
Observation of clustering of ultrahigh energy cosmic rays (UHECR) suggests that they are emitted by compact sources. Assuming small ( <3 degrees ) deflection of UHECR during the propagation, the statistical analysis of clustering allows an estimate of the spatial density of the sources h(*), including those not yet observed. When applied to astrophysical models involving extragalactic sources, the estimate based on 14 events with energy E>10(20) eV gives h(*) approximately 6x10(-3) Mpc(-3). With increasing statistics, this estimate may lead to exclusion of some models.
Mots-clé
Astronomical Phenomena, Astronomy, Cosmic Radiation, Models, Statistical
OAI-PMH
Pubmed
Création de la notice
19/11/2007 10:34
Dernière modification de la notice
20/08/2019 13:42