Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-04-22
Astrophys.J.577:L93,2002
Astronomy and Astrophysics
Astrophysics
11 pages, 1 figure, version published in APJ Letters
Scientific paper
10.1086/344332
A set of potentially gamma-ray--loud BL Lac objects is selected by intersecting the EGRET and BL Lac catalogs. Of the resulting 14 objects, eight are found to correlate with arrival directions of ultra--high-energy cosmic rays (UHECRs), with significance of the order of 5 sigma. This suggests that gamma-ray emission can be used as a distinctive feature of those BL Lac objects that are capable of producing UHECR.
Gorbunov Dmitry
Tinyakov Peter
Tkachev Igor I.
Troitsky Sergey
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