22-30 July 2021
North-West University
Africa/Johannesburg timezone
More Information Coming Soon

Solar modulation of cosmic ray proton related to observations by PAMELA from 2006 to 2014

Not scheduled
20m
Potchefstroom Campus (North-West University)

Potchefstroom Campus

North-West University

Poster Presentation Track D2 - Space Science Space Science

Speaker

Ms Innocentia Ramokgaba (School of Physical & Chemical Sciences, North-West University, Mmabatho, South Africa)

Description

The global features of solar modulation of galactic cosmic ray proton in the heliosphere are studied with a comprehensive three-dimensional numerical model and compared to proton observations made by PAMELA experiment from 2006 to 20014. The results of the numerical modelling and its comparison with observations give insight into how the elements of the diffusion and drift tensor change with time from solar minimum to solar maximum conditions. We find that, in order to fit PAMELA observations, the rigidity slope of the perpendicular mean free path below 4 GV increases from 2006 to 2014, while remaining almost constant above 4 GV. This study will provide better constraints on the magnitudes and rigidity slopes of the diffusion mean free paths at the Earth.

Level for award;(Hons, MSc, PhD, N/A)?

MSc

Apply to be considered for a student ; award (Yes / No)?

yes

Primary authors

Ms Innocentia Ramokgaba (School of Physical & Chemical Sciences, North-West University, Mmabatho, South Africa) Dr Mabedle Ngobeni (1. Centre for Space Research, North-West University, Potchefstroom, South Africa 2. School of Physical & Chemical Sciences, North-West University, Mmabatho, South Africa) Dr Dzivhuluwani Ndiitwani (1. Centre for Space Research, North-West University, Potchefstroom, South Africa 2. School of Physical & Chemical Sciences, North-West University, Mmabatho, South Africa)

Presentation Materials

There are no materials yet.