Identification of Nearby Active Galaxies as Sources of Cosmic Rays Above 4x1019 ev
Abstract
Arrival directions of 63 extensive air showers with energies 4 1019<E<=3 1020 eV detected by the AGASA, Yakutsk, and Haverah Park arrays are analysed in order to identify possible sources of cosmic rays with these energies. We searched for active galactic nuclei within error boxes around the shower-arrival directions and calculated the probabilities of objects being in the error boxes by chance. Our previous result obtained in 1996-2001 (see references in the text) is confirmed: the probabilities are small, P>3 sigma (sigma is the parameter of Gaussian distribution)for Seyfert galaxies with redshifts z<0.01. The Seyfert galaxies are characterized by moderate luminosities (L<1046 erg/s) and weak radio and X-ray emission. Astronomical and Astrophysical Transactions, 2003, v.22, #6, pp.(TBD)
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