Search for Sources of Ultrahigh Energy Cosmic Rays

Details Search for Sources of Ultrahigh Energy Cosmic Rays Search for Sources of Ultrahigh Energy Cosmic Rays

1999-06-18

arxiv.org/abs/astro-ph/9906302v1

Proceedings 26-th ICRC(Salt Lake City),1999,v.3,p.268.

Astronomy and Astrophysics

Astrophysics

4 pages,7 figures,to appear in Proceedings of 26th ICRC(Salt Lake City), OG 1.3.08

Scientific paper

The connection between the arrival directions of ultrahigh energy cosmic rays by using the EAS array data and point galactic sources of radio-and gamma-radiations, pulsars,is sought. At the mean particle energy of 10^{19} eV the correlation between the particle arrival directions and pulsars located along the magnetic field lines has been found. According to our estimations the chance probability is equal to 2.10^{-4}. The observed particle flux from 16 pulsars inside a circle of radius <6^{\circ} exceeds the background by 6.3\sigma (p < 10^{-10}), from PSR 2351+61 - 5\sigma. A group of 9 pulsars has been found from the direction of which the particle flux in the region 10^{\circ}\times60^{\circ} is in excess of the expected one by 4.4\sigma. The obtained results are discussed.

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