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The HelMod Monte Carlo Model for the Propagation of Cosmic Rays in Heliosphere


The heliospheric modulation model HelMod solves the transport-equation for Galactic Cosmic Ray propagation through the heliosphere down to Earth. It is based on a 2-D Monte Carlo approach that includes a general description of the symmetric and antisymmetric parts of the diffusion tensor, thus properly treating the particle drift effects as well as convection within the solar wind and adiabatic energy loss. The model was tuned in order to fit 1) the data observed outside the ecliptic plane at several distances from the Earth and 2) the spectra observed near the Earth for both, high and low solar activity periods. Great importance was given to description of polar regions of the heliosphere. We present the flux for protons, antiprotons and helium nuclei computed for solar cycle 23-24 in comparison with experimental observations and prediction for the full solar cycle 24.

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Abe, K. & BESS Collaboration 2016, ApJ, 822, 65
Adriani, O. & PAMELA Collaboration 2013, ApJ, 765, 91
Aguilar, M. & AMS Collaboration 2002, Phys. Rep., 366, 331
Aguilar, M., et al. 2014, Phys. Rev. Lett., 113, 121102
Aguilar, M., et al. 2015a, Phys. Rev. Lett., 114, 171103
Aguilar, M., et al. 2015b, Phys. Rev. Lett., 115, 211101
Aguilar, M., et al. 2016a, Phys. Rev. Lett., 117, 231102
Aguilar, M., et al. 2016b, Phys. Rev. Lett., 117, 091103
Bobik, P., Boella, G., Boschini, M. J., et al. 2012, ApJ, 745, 132
Bobik, P., Boella, G., Boschini, M. J., et al. 2013, Advances in Astronomy, 2013, 793072
Bobik, P., Boschini, M. J., Della Torre, S., et al. 2016, J. Geophys. Res., 121, 3920
Boschini, M. J., Della Torre, S., Gervasi, M., et al. 2017a, Adv. Space Res, press
Boschini, M. J., Della Torre, S., Gervasi, M., et al. 2017b, ApJ, 840, 115
Jokipii, J. R., Levy, E. H. & Hubbard, W. B. 1977, ApJ, 213, 861
Kühl, P., Gómez-Herrero, R. & Heber, B. 2016, Solar Phys., 291, 965
Masi, N. 2016, Il Nuovo Cimento 39 C, 298
Owens, M. J., Lockwood, M., Barnard, L. & Davis, C. J. 2011, Geophys. Res. Lett., 38, L19106
Owens, M. J., Usoskin, I. & Lockwood, M. 2012, Geophys. Res. Lett., 39, L19102
Parker, E. N. 1965, Plan. Space Sci., 13, 9
Porter, T. A., Jóhannesson, G. & Moskalenko, I. V. 2017, ApJ, 846, 67
Shikaze, Y. & BESS Collaboration 2007, Astrop. Phys., 28, 154
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Proceedings of the International Astronomical Union
  • ISSN: 1743-9213
  • EISSN: 1743-9221
  • URL: /core/journals/proceedings-of-the-international-astronomical-union
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