Contribution to the local cosmic-ray flux from the Geminga supernova
Astrophysics
2009-10-22 v1
Abstract
The contribution to the local cosmic-ray flux from the Geminga supernova is calculated assuming shock acceleration to 10^14 eV in a remnant which was formed several 10^5 years ago along with the Geminga pulsar. The particles are propagated to Earth using a simple diffusion model. In the region below the knee in the spectrum, it is found the supernova may contribute 10% of the local cosmic-ray flux, assuming plausible explosion parameters. The contribution to the amplitude of the anisotropy is not in conflict with the data in this energy region.
Cite
@article{arxiv.astro-ph/9404004,
title = {Contribution to the local cosmic-ray flux from the Geminga supernova},
author = {P. A. Johnson},
journal= {arXiv preprint arXiv:astro-ph/9404004},
year = {2009}
}
Comments
11 pages of compressed and uuencoded Postscript; hardcopy available on request; to be published in Astroparticle Physics; ADP-AT-94-3