Ultra-high energy cosmic ray sources and large scale magnetic fields

Details Ultra-high energy cosmic ray sources and large scale magnetic fields Ultra-high energy cosmic ray sources and large scale magnetic fields

1997-04-21

arxiv.org/abs/astro-ph/9704203v1

Astrophys.J.486:L115-L118,1997

Astronomy and Astrophysics

Astrophysics

12 latex pages, 3 encapsulated postscript figures included, uses aaspp4.sty, and psfig.sty. Submitted to ApJ Lett

Scientific paper

10.1086/310847

Protons of energies up to 10**20 eV can be subject to significant deflection and energy dependent time delay in lage scale extragalactic or halo magnetic fields of strengths comparable to current upper limits. By performing 3-dimensional Monte Carlo simulations of nucleon propagation, we show how observations of arrival direction and time distributions can be used to measure the structure and strength of large-scale magnetic fields, and constrain the nature of the source of ultra-high energy cosmic rays.

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