Magnitudes and timescales of total solar irradiance variability

G Kopp - Journal of space weather and space climate, 2016 - swsc-journal.org
The Sun's net radiative output varies on timescales of minutes to gigayears. Direct
measurements of the total solar irradiance (TSI) show changes in the spatially-and spectrally …

The behaviour of galactic cosmic-ray intensity during solar activity cycle 24

E Ross, WJ Chaplin - Solar physics, 2019 - Springer
We have studied long-term variations of galactic cosmic-ray (GCR) intensity in relation to the
sunspot number (SSN) during the most recent solar cycles. This study analyses the time lag …

The global modulation of cosmic rays during a quiet heliosphere: A modeling perspective

MS Potgieter - Advances in Space Research, 2017 - Elsevier
A perspective is given of the solar modulation of galactic cosmic rays in the heliosphere
during the extraordinary quiet solar minimum period from 2006 to 2009. This is done in the …

Can we properly model the neutron monitor count rate?

A Gil, IG Usoskin, GA Kovaltsov… - Journal of …, 2015 - Wiley Online Library
Neutron monitors provide continuous measurements of secondary nucleonic particles
produced in the atmosphere by the primary cosmic rays and form the main tool to study the …

Time and charge-sign dependence of the heliospheric modulation of cosmic rays

OPM Aslam, D Bisschoff, MD Ngobeni… - The Astrophysical …, 2021 - iopscience.iop.org
Simultaneous and continuous observations of galactic cosmic-ray electrons (e−) and
positrons (e+) from the PAMELA and AMS02 space experiments are most suitable for …

A study of heliospheric modulation and periodicities of galactic cosmic rays during cycle 24

P Chowdhury, K Kudela, YJ Moon - Solar Physics, 2016 - Springer
Galactic cosmic rays (GCRs) are energetic, charged particles coming from outside the solar
system. These particles encounter an outward-moving turbulent solar wind with cyclic …

The effects of magnetic field modifications on the solar modulation of cosmic rays with a SDE-based model

JL Raath, MS Potgieter, RD Strauss, A Kopp - Advances in Space …, 2016 - Elsevier
A numerical model for the solar modulation of cosmic rays, based on the solution of a set of
stochastic differential equations (SDEs), is used to illustrate the effects of modifying the …

Study of cosmic-ray modulation during the recent unusual minimum and mini-maximum of solar cycle 24

OPM Aslam, Badruddin - Solar physics, 2015 - Springer
After a prolonged and deep solar minimum at the end of Cycle 23, the current Solar Cycle 24
is one of the lowest cycles. These two periods of deep minimum and mini-maximum are …

Cosmic rays: bringing messages from the sky to the Earth's surface

AA Pacini - Revista Brasileira de Ensino de Física, 2017 - SciELO Brasil
All the evolution of the scientific knowledge about Cosmic Rays (CRs) in the 20 th century
leads to the following statement: Cosmic Rays constitutes a time and spatial variable flux of …

Long-term modulation of cosmic-ray intensity and correlation analysis using solar and heliospheric parameters

VK Mishra, AP Mishra - Solar Physics, 2018 - Springer
Based on the monthly sunspot numbers (SSNs), the solar-flare index (SFI), grouped solar
flares (GSFs), the tilt angle of heliospheric current sheet (HCS), and cosmic-ray intensity …