91 citations · 387 across the 19 of their papers we have counts for
19 papers
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…
Investigating the Efficacy of Topologically Derived Time Series for Flare Forecasting. II. XGBoost Model
Thomas Williams, Christopher B. Prior, David MacTaggart +1
Solar flares are a primary driver of space weather, and forecasting their occurrence remains a significant challenge. This paper presents a novel flare prediction model based on to…
The magnetic topology of AR13664 leading to its first halo CME
David MacTaggart, Tom Williams, OPM Aslam
In the first half of May 2024, the solar active region (AR)13664 was responsible for generating the strongest geomagnetic storm in over 20 years, through an enhanced production of…
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…
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…
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…