Jul 12 – 23, 2021
Online
Europe/Berlin timezone

A simulation study of galactic proton modulation from solar minimum to maximum conditions

Jul 14, 2021, 12:00 PM
1h 30m
07

07

Poster SH | Solar & Heliospheric Discussion

Speaker

Dr Dzivhuluwani Ndiitwani (Centre for Space Research, North-West University, Potchefstroom, South Africa; School of Physical & Chemical Sciences, North-West University, Mmabatho, South Africa)

Description

The observation of various cosmic ray particles at the Earth had been done with the PAMELA space detector for almost 10 years, from June 2006 to January 2016. The AMS-02 space experiment provides similar cosmic ray data. The purpose of this work is to utilize the available state-of-the-art numerical modulation model for the transport of cosmic rays in the heliosphere to compute the modulation of galactic protons from minimum to maximum solar activity. These modeling results, which simulate realistic heliospheric conditions, are compared to proton observations from PAMELA taken between 2006 and 2014 and to similar AMS-02 observations after 2011. It will be shown how differently modulation mechanisms influence the time-evolution of the proton spectra when modulation conditions change from minimum to maximum.

Keywords

"Heliosphere; Modulation; Pamela"

Collaboration PAMELA
Subcategory Theoretical Methods

Primary author

Dr Dzivhuluwani Ndiitwani (Centre for Space Research, North-West University, Potchefstroom, South Africa; School of Physical & Chemical Sciences, North-West University, Mmabatho, South Africa)

Co-authors

Dr Donald Ngobeni (Centre for Space Research, North-West University, Potchefstroom, South Africa;School of Physical & Chemical Sciences, North-West University, Mmabatho, South Africa) Dr O.P.M Aslam (Centre for Space Research, North-West University, Potchefstroom, South Africa) Dr Driaan Bisschoff (Centre for Space Research, North-West University, Potchefstroom, South Africa) Prof. Marius Potgieter (Retired; FS4, Potchefstroom, South Africa) Dr Mirko Boezio (INFN, Sezione di Trieste, I-34149 Trieste, Italy) Dr Riccardo Munini (INFN, Sezione di Trieste, I-34149 Trieste, Italy)

Presentation materials

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