1999•arXiv (Cornell University)Open access

Search for Sources of Ultrahigh Energy Cosmic Rays

A. A. Mikhaĭlov

Open full text 0 citations

Abstract

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 6.3σ(p < 10^{-10}), from PSR 2351+61 - 5σ. 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 4.4σ. The obtained results are discussed.

Open-access reader

About this research paper

What this paper is about

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 6.3σ(p < 10^{-10}), from PSR 2351+61 - 5σ. 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 4.4σ. The obtained results are discussed.

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

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 6.3σ(p < 10^{-10}), from PSR 2351+61 - 5σ. 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 4.4σ. The obtained results are discussed.

Key concepts: Pulsar, Physics, Cosmic ray, RADIUS, Astrophysics, Flux (metallurgy), Particle (ecology), Gamma ray

Related papers

Back to paper searchBrowse research topicsOriginal source
Search for Sources of Ultrahigh Energy Cosmic Rays — Research Paper | ScholarLens