Speaker
Nicolò Masi
(INFN BO)
Description
Cosmic ray (CR) propagation from sources to the observer is described mainly as diffusion at high energies, while at low energies there are several other physical processes involved, both in the interstellar space and in the heliosphere. In this work we derive the Local Interstellar Spectra (LIS) of CR species outside the Heliospheric boundary. The proposed LIS are tuned to accommodate both, the low energy CR spectra measured by Voyager 1, and the high energy observations publicly released by BESS, Pamela, AMS-01 and AMS-02. The proton and helium LIS are derived by combining the CR propagation in the Galaxy, as described by GALPROP, with the Solar Modulation computed using HelMod Monte Carlo Tool. The proposed LIS are tuned to reproduce the modulated spectra for both, high and low, levels of solar activity.
Primary authors
Davide Grandi
(INFN MIB)
Davide Rozza
(INFN MIB)
Elena Orlando
(Stanford University)
Giuseppe La Vacca
(INFN MIB)
Guolaugur Johannesson
(University of Iceland)
Igor Moskalenko
(Stanford University)
Lucio Quadrani
(INFN BO)
Massimo Gervasi
(INFN MIB)
Nicolò Masi
(INFN BO)
Pier Giorgio Rancoita
(INFN MIB)
Stefano Della Torre
(INFN MIB)
Troy Porter
(Stanford University)
