A Data-driven, Physics-based Transport Model of Solar Energetic Particles Accelerated by Coronal Mass Ejection Shocks Propagating through the Solar Coronal and Heliospheric Magnetic Fields [PDF]
The Astrophysical Journal Supplement Series, 2023 In an effort to develop computational tools for predicting radiation hazards from solar energetic particles (SEPs), we have created a data-driven physics-based particle transport model to calculate the injection, acceleration, and propagation of SEPs ...
Ming Zhang +7 more
doaj +2 more sources
A type II solar radio burst without a coronal mass ejection [PDF]
Astronomy & Astrophysics, 2023 The Sun produces the most powerful explosions in the solar system, solar flares, that can also be accompanied by large eruptions of magnetised plasma, coronal mass ejections (CMEs).
D. Morosan +4 more
semanticscholar +1 more source
Acceleration of Solar Energetic Particles by the Shock of Interplanetary Coronal Mass Ejection [PDF]
Astrophysical Journal, 2021 Interplanetary coronal mass ejection (ICME) shocks are known to accelerate particles and contribute significantly to solar energetic particle events.
Shanwlee Sow Mondal +3 more
semanticscholar +1 more source
Coronal Mass Ejection Deformation at 0.1 au Observed by WISPR [PDF]
Astrophysical Journal, 2022 Although coronal mass ejections (CMEs) resembling flux ropes generally expand self-similarly, deformations along their fronts have been reported in observations and simulations.
C. Braga +5 more
semanticscholar +1 more source
Drag-Based Model (DBM) Tools for Forecast of Coronal Mass Ejection Arrival Time and Speed [PDF]
Frontiers in Astronomy and Space Sciences, 2021 Forecasting the arrival time of coronal mass ejections (CMEs) and their associated shocks is one of the key aspects of space weather research. One of the commonly used models is the analytical drag-based model (DBM) for heliospheric propagation of CMEs ...
M. Dumbović +6 more
semanticscholar +1 more source
Shock-accelerated electrons during the fast expansion of a coronal mass ejection [PDF]
Astronomy & Astrophysics, 2022 Context. Some of of the most prominent sources for energetic particles in our Solar System are huge eruptions of magnetised plasma from the Sun called coronal mass ejections (CMEs), which usually drive shocks that accelerate charged particles up to ...
D. Morosan +4 more
semanticscholar +1 more source
Astrophysical Journal, 2022 We analyze the formation and three-dimensional (3D) evolution of two coronal mass ejections (CMEs) and their associated waves in the low corona via a detailed multi-viewpoint analysis of extreme-ultraviolet observations.
L. Balmaceda +3 more
semanticscholar +1 more source
Solar Coronal Density Turbulence and Magnetic Field Strength at the Source Regions of Two Successive Metric Type II Radio Bursts [PDF]
Astrophysical Journal, 2023 We report spectral and polarimeter observations of two weak, low-frequency (≈85–60 MHz) solar coronal type II radio bursts that occurred on 2020 May 29 within a time interval ≈2 minutes.
R. Ramesh +2 more
semanticscholar +1 more source
Particle Energization at a High Mach Number Perpendicular Shock: 1D Particle-in-cell Simulations
The Astrophysical Journal, 2023 In this paper, we use a 1D particle-in-cell simulation code to study particle preaccelerations at a high Mach number perpendicular shock. Our simulation results show that almost all of the injected particles can be reflected at the shock front, and then ...
Yufei Hao +6 more
doaj +1 more source
Early-stage Solar Energetic Particle Acceleration by Coronal Mass Ejection-driven Shocks with Realistic Seed Spectra. I. Low Corona [PDF]
Astrophysical Journal, 2019 An outstanding problem in heliospheric physics is understanding the acceleration of solar energetic particles (SEPs) in coronal mass ejections (CMEs) and flares.
K. Kozarev, M. Dayeh, A. Farahat
semanticscholar +1 more source