117 citations · 345 across the 14 of their papers we have counts for
14 papers
Sun-to-Earth Coronal Mass Ejection Simulations From a Vector Magnetogram
Yifu An, Gábor Tóth, Beatrice Popescu Braileanu
We implement a novel approach to performing Sun-to-Earth coronal mass ejection (CME) simulations and test it on three geo-effective space weather events. Using a vector magnetogram…
Fast magneto-acoustic waves in the solar chromosphere: Comparison of single-fluid and two-fluid approximations
M. M. Gómez Míguez, D. Martínez-Gómez, E. Khomenko +3
Context: The mechanism behind the heating of the solar chromosphere remains unclear. Friction between neutrals and charges is expected to contribute to plasma heating in a partiall…
Coronal rain formation in a two-fluid approximation
Beatrice Popescu Braileanu, Rony Keppens
Coronal rain, observed in 3D spine-fan magnetic configurations, results from thermal instability in the solar corona, where runaway in-situ cooling causes plasma to condense and dr…
Icarus 3.0: Dynamic Heliosphere Modelling
Tinatin Baratashvili, Beatrice Popescu Braileanu, Fabio Bacchini +2
Space weather predictions are necessary to avoid damage caused by intense geomagnetic storms. Such strong storms are usually caused by a co-rotating interaction region (CIR) passin…
Two-fluid reconnection jets in a gravitationally stratified atmosphere
B. Popescu Braileanu, R. Keppens
The density decreases exponentially with height in the solar gravitationally stratified atmosphere, therefore the collisional coupling between the ionized plasma and the neutrals a…
MPI-AMRVAC 3.0: updates to an open-source simulation framework
Rony Keppens, Beatrice Popescu Braileanu, Yuhao Zhou +5
Computational astrophysics routinely combines grid-adaptive capabilities with modern shock-capturing, high resolution spatio-temporal schemes on multi-dimensional hydro- and magnet…
Two-fluid implementation in MPI-AMRVAC, with applications in the solar chromosphere
B. Popescu Braileanu, R. Keppens
The chromosphere is a partially ionized layer of the solar atmosphere, the transition between the photosphere where the gas is almost neutral and the fully ionized corona. As the c…
Three-dimensional MHD wave propagation near a coronal null point: a new wave mode decomposition approach
N. Yadav, Rony Keppens, B. Popescu Braileanu
We present a new MHD wave decomposition method that overcomes the limitations of existing wave identification methods. Our method allows to investigate the energy fluxes in differe…
Effects of ambipolar diffusion on waves in the solar chromosphere
Beatrice Popescu Braileanu, Rony Keppens
The chromosphere is a partially ionized layer of the solar atmosphere, the transition between the photosphere where the gas motion is determined by the gas pressure and the corona…
Simulations of the Biermann battery mechanism in two-fluid partially ionised plasmas
David Martínez-Gómez, Beatrice Popescu Braileanu, Elena Khomenko +1
In the absence of an initial seed, the Biermann battery term of a non-ideal induction equation acts as a source that generates weak magnetic fields. These fields are then amplified…
Two-fluid simulations of Rayleigh-Taylor instability in a magnetized solar prominence thread II. Effects of collisionality
B. Popescu Braileanu, V. S. Lukin, E. Khomenko +1
In this work, we explore the dynamical impacts and observable signatures of two-fluid effects in the parameter regimes when ion-neutral collisions do not fully couple the neutral a…
Two-fluid simulations of Rayleigh-Taylor instability in a magnetized solar prominence thread. I. Effects of prominence magnetization and mass loading
B. Popescu Braileanu, V. S. Lukin, E. Khomenko +1
Solar prominences are formed by partially ionized plasma with inter-particle collision frequencies generally warranting magnetohydrodynamic treatment. In this work, we explore the…
Two-fluid simulations of waves in the solar chromosphere II. Propagation and damping of fast magneto-acoustic waves and shocks
B. Popescu Braileanu, V. S. Lukin, E. Khomenko +1
Waves and shocks traveling through the solar chromospheric plasma are influenced by its partial ionization and weak collisional coupling, and may become susceptible to multi-fluid…
Two-fluid simulations of waves in the solar chromosphere I: numerical code verification
B. Popescu Braileanu, V. S. Lukin, E. Khomenko +1
Solar chromosphere consists of a partially ionized plasma, which makes modeling the solar chromosphere a particularly challenging numerical task. Here we numerically model chromosp…