activity
20082026
most citedTime dependence of the flux of helium nuclei in cosmic rays measured by the PAMELA experiment between July 2006 and December 2009

33 citations · 110 across the 8 of their papers we have counts for

collaborators

8 papers

astro-ph.SR2026

On modelling the 2017 galactic cosmic ray depression

O. P. M. Aslam, D. MacTaggart, M. S. Potgieter +2

In the second half of 2017, as Solar Cycle 24 approached its minimum, a pronounced and rigidity-dependent depression in the galactic cosmic ray (GCR) proton flux was observed using…

astro-ph.SR2024

The source of the 2017 cosmic ray half-year modulation event

O. P. M. Aslam, D. MacTaggart, R. Battiston +2

In 2017, as the solar cycle approached solar minimum, an unusually long and large depression was observed in galactic cosmic ray (GCR) protons, detected with the Alpha Magnetic Spe…

astro-ph.SR2023★ 7 cited

Modulation of cosmic ray anti-protons in the heliosphere: simulations for a solar cycle

O. P. M. Aslam, M. S. Potgieter, Xi Luo +1

The precision measurements of galactic cosmic ray protons from PAMELA and AMS are reproduced using a well-established 3D numerical model for the period July 2006 - November 2019. T…

astro-ph.SR2022★ 21 cited

Unfolding Drift Effects for Cosmic Rays over the Period of the Sun's Magnetic Field Reversal

O. P. M. Aslam, Xi Luo, M. S. Potgieter +2

A well-established, comprehensive 3-D numerical modulation model is applied to simulate galactic protons, electrons and positrons from May 2011 to May 2015, including the solar mag…

astro-ph.HE2022★ 23 cited

Helium fluxes measured by the PAMELA experiment from the minimum to the maximum solar activity for solar cycle 24

N. Marcelli, M. Boezio, A. Lenni +53

Time-dependent energy spectra of galactic cosmic rays (GCRs) carry fundamental information regarding their origin and propagation. When observed at the Earth, these spectra are sig…

astro-ph.HE2020★ 26 cited

Time and Charge-Sign Dependence of the Heliospheric Modulation of Cosmic Rays

O. P. M. Aslam, D. Bisschoff, M. D. Ngobeni +4

Simultaneous and continuous observations of galactic cosmic-ray electrons and positrons from the PAMELA and AMS02 space experiments are most suitable for numerical modeling studies…