Speaker
Nicola Tomassetti
(University of Perugia & INFN)
Description
Galactic cosmic rays (GCRs) inside the heliosphere are affected by magnetic turbulence and Solar wind disturbances which result in the so-called solar modulation effect. To investigate this phenomenon, we have performed a data-driven analysis of the temporal dependence of the GCR flux over the solar cycle. With a global statistical inference of GCR data collected in space by AMS-02, PAMELA, and CRIS on monthly basis, we have determined the dependence of the GCR diffusion parameters upon time and rigidity. In this conference, we present our results for GCR protons and nuclei, we discuss their interpretation in terms of basic processes of particle transport and their relations with the dynamics of the heliospheric plasma.
| Subcategory | Theoretical Methods |
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Primary authors
Nicola Tomassetti
(University of Perugia & INFN)
Bruna Bertucci
(University of Perugia, Italy)
Federico Donnini
(INFN - Sezione di Perugia, Italy)
Emanuele Fiandrini
(University of Perugia, Italy)
Maura Graziani
(University of Perugia, Italy)
Behrouz Khiali
(ASI Space Science Data Center (SSDC), Roma, Italy)
Alejandro Reina Conde
(L'Instituto de Astrofísica de Canarias, Spain)
