146 citations · 214 across the 12 of their papers we have counts for
12 papers
Geoelectric Field Caused by Flux Transfer Events in an Ionosphere-Coupled Vlasiator Simulation
Konstantinos Horaites, Markku Alho, Yann Pfau-Kempf +10
We report on the relationship between flux transfer events (FTEs) at Earth's magnetopause and the geoelectric field that is induced near the FTEs' magnetic footpoints. We study thi…
Load Balancing in Strongly Inhomogeneous Simulations -- a Vlasiator Case Study
Leo Kotipalo, Markus Battarbee, Yann Pfau-Kempf +2
Parallelization is a necessity for large-scale simulations due to the amount of data processed. In this article we investigate different load balancing methods using Vlasiator, a g…
Coalescing MPI communication in 6D Vlasov simulations: solving ghost domains in Vlasiator
Markus Battarbee, Urs Ganse, Yann Pfau-Kempf +3
High-performance computing is used for diverse simulations, some of which parallelize over the Message Passing Interface (MPI) with ease, whilst others may have challenges related…
Sunward Flows in the Magnetosheath Associated with Magnetic Pressure Gradient and Magnetosheath Expansion
H. Madanian, Y. Pfau-Kempf, R. Rice +5
A density structure within the magnetic cloud of an interplanetary coronal mass ejection impacted Earth and caused significant perturbations in plasma boundaries. We describe the e…
Transient Upstream Mesoscale Structures: Drivers of Solar-Quiet Space Weather
Primož Kajdič, Xóchitl Blanco-Cano, Lucile Turc +12
In recent years, it has become increasingly clear that space weather disturbances can be triggered by transient upstream mesoscale structures (TUMS), independently of the occurrenc…
Simulation Models for Exploring Magnetic Reconnection
Michael Shay, Subash Adhikari, Naoki Beesho +22
Simulations have played a critical role in the advancement of our knowledge of magnetic reconnection. However, due to the inherently multiscale nature of reconnection, it is imposs…
Porting the grid-based 3D+3V hybrid-Vlasov kinetic plasma simulation Vlasiator to heterogeneous GPU architectures
Markus Battarbee, Konstantinos Papadakis, Urs Ganse +5
Vlasiator is a space plasma simulation code which models near-Earth ion-kinetic dynamics in three spatial and three velocity dimensions. It is highly parallelized, modeling the Vla…
Hybrid-Vlasov simulation of soft X-ray emissions at the Earth's dayside magnetospheric boundaries
Maxime Grandin, Hyunju K. Connor, Sanni Hoilijoki +5
Solar wind charge exchange produces emissions in the soft X-ray energy range which can enable the study of near-Earth space regions such as the magnetopause, the magnetosheath and…
First 3D hybrid-Vlasov global simulation of auroral proton precipitation and comparison with satellite observations
Maxime Grandin, Thijs Luttikhuis, Markus Battarbee +15
The precipitation of charged particles from the magnetosphere into the ionosphere is one of the crucial coupling mechanisms between these two regions of geospace and is associated…
ULF wave transmission across collisionless shocks: 2.5D local hybrid simulations
Primoz Kajdic, Yann Pfau-Kempf, Lucile Turc +10
We study the interaction of upstream ultra-low frequency (ULF) waves with collisionless shocks by analyzing the outputs of eleven 2D local hybrid simulation runs. Our simulated sho…
FORESAIL-1 cubesat mission to measure radiation belt losses and demonstrate de-orbiting
FORESAIL collaboration, M. Palmroth, J. Praks +57
Today, the near-Earth space is facing a paradigm change as the number of new spacecraft is literally sky-rocketing. Increasing numbers of small satellites threaten the sustainable…
Vlasov methods in space physics and astrophysics
Minna Palmroth, Urs Ganse, Yann Pfau-Kempf +7
This paper reviews Vlasov-based numerical methods used to model plasma in space physics and astrophysics. Plasma consists of collectively behaving charged particles that form the m…