Heliosphere Dimension and Cosmic Ray Modulation
Abstract
The differential intensities of Cosmic Rays at Earth were calculated using a 2D stochastic Montecarlo diffusion code and compared with observation data. We evaluated the effect of stretched and compressed heliospheres on the Cosmic Ray intensities at the Earth. This was studied introducing a dependence of the diffusion parameter on the heliospherical size. Then, we found that the optimum value of the heliospherical radius better accounting for experimental data. We also found that the obtained values depends on solar activity. Our results are compatible with Voyager observations and with models of heliospherical size modulation.
Cite
@article{arxiv.1112.5730,
title = {Heliosphere Dimension and Cosmic Ray Modulation},
author = {P. Bobik and M. J. Boschini and C. Consolandi and S. Della Torre and M. Gervasi and D. Grandi and K. Kudela and F. Noventa and S. Pensotti and P. G. Rancoita and D. Rozza},
journal= {arXiv preprint arXiv:1112.5730},
year = {2017}
}
Comments
To appear on the Proceedings of the 13th ICATPP Conference on Astroparticle, Particle, Space Physics and Detectors for Physics Applications, Villa Olmo (Como, Italy), 3-7 October, 2011, to be published by World Scientific, Singapore (2012)