Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-27T11:42:38.672Z Has data issue: false hasContentIssue false

Propagation of Cosmic Rays from the Vicinity of the Galactic Centre

Published online by Cambridge University Press:  05 March 2013

R. W. Clay*
Affiliation:
Department of Physics and Mathematical Physics, University of Adelaide, SA 5005, Australia; rclay@physics.adelaide.edu.au
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

There is now evidence that there may be a strong source of cosmic ray particles in the general direction of the Galactic Centre. The likelihood is that the observed particles are neutrons with energies of about 1018 eV. Associated with the production of those neutrons, we would expect that large numbers of charged cosmic rays would also be produced, and we investigate here the directional properties of those charged particles as they may be observed at the distance of the Earth from the Galactic Centre. We follow the propagation of such particles through a simple Galactic magnetic field model with both a turbulent and a regular field to determine what field properties most affect the observed beam. It appears that the turbulent field component is crucial to any resulting charged particle observations.

Type
Research Article
Copyright
Copyright © Astronomical Society of Australia 2000

References

Bellido, J. A., Clay, R. W., & Dawson, B. R. 2000, Astroparticle Phys., in pressGoogle Scholar
Clay, R. W., et al. 1998, Astroparticle Phys., 9, 221 CrossRefGoogle Scholar
Clay, R. W., et al. 2000, Astroparticle Phys., 12, 249 CrossRefGoogle Scholar
Hayashida, N., et al. 1999a, Astroparticle Phys., 10, 303 CrossRefGoogle Scholar
Hayashida, N., et al. 1999b, Proc. 26th Int. Cosmic Ray Conf. (Salt Lake City) 3, 256 Google Scholar
Jones, L. W. 1990, Proc. 21st Int. Cosmic Ray Conf. (Adelaide) 2, 75 Google Scholar
Lee, A. A., & Clay, R. W. 1995, J. Phys. G: Nucl. Part. Phys., 21, 1743 CrossRefGoogle Scholar
Rand, R. J., & Kulkarni, S. R. 1989, ApJ, 343, 760 CrossRefGoogle Scholar