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VOLUME 74 | ISSUE 9 | PAGE 499
BL Lacertae are probable sources of the observed ultra-high energy cosmic rays
P. G. Tinyakov^{+\square}, I. I. Tkachev^{*\square}
+Institute of Theoretical Physics, University of Lausanne, CH-1015 Lausanne, Switzerland
*CERN Theory Division, CH-1211 Geneva 23, Switzerland
^\squareInstitute for Nuclear Research RAS, 117312 Moscow, Russia


PACS: 98.70.Sa
Abstract
We calculate angular correlation function between ultra-high energy cosmic rays (UHECR) observed by Yakutsk and AGASA experiments, and most powerful BL Lacertae objects. We find significant correlations which correspond to the probability of statistical fluctuation less than 10-4, including penatly for selecting the subset of brightest BL Lacs. We conclude that some of BL Lacs are sources of the observed UHECR and present a list of most probable candidates.


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