MPI-AMRVAC 3.0: Updates to an open-source simulation framework

R Keppens, BP Braileanu, Y Zhou, W Ruan… - Astronomy & …, 2023 - aanda.org
Context. Computational astrophysics nowadays routinely combines grid-adaptive
capabilities with modern shock-capturing, high resolution spatio-temporal integration …

Vortex motions in the solar atmosphere: Definitions, theory, observations, and modelling

K Tziotziou, E Scullion, S Shelyag, O Steiner… - Space Science …, 2023 - Springer
Vortex flows, related to solar convective turbulent dynamics at granular scales and their
interplay with magnetic fields within intergranular lanes, occur abundantly on the solar …

Generation of solar spicules and subsequent atmospheric heating

T Samanta, H Tian, V Yurchyshyn, H Peter, W Cao… - Science, 2019 - science.org
Spicules are rapidly evolving fine-scale jets of magnetized plasma in the solar
chromosphere. It remains unclear how these prevalent jets originate from the solar surface …

A comprehensive radiative magnetohydrodynamics simulation of active region scale flux emergence from the convection zone to the corona

F Chen, M Rempel, Y Fan - The Astrophysical Journal, 2022 - iopscience.iop.org
We present a comprehensive radiative magnetohydrodynamic simulation of the quiet Sun
and large solar active regions. The 197 Mm wide simulation domain spans from 18 (10) Mm …

Ion–neutral interactions and nonequilibrium ionization in the solar chromosphere

J Martínez-Sykora, J Leenaarts… - The Astrophysical …, 2020 - iopscience.iop.org
The thermal structure of the chromosphere is regulated through a complex interaction of
various heating processes, radiative cooling, and the ionization degree of the plasma. Here …

Radiation hydrodynamics in simulations of the solar atmosphere

J Leenaarts - Living Reviews in Solar Physics, 2020 - Springer
Nearly all energy generated by fusion in the solar core is ultimately radiated away into space
in the solar atmosphere, while the remaining energy is carried away in the form of neutrinos …

Critical Science Plan for the Daniel K. Inouye Solar Telescope (DKIST)

MP Rast, N Bello González, L Bellot Rubio, W Cao… - Solar Physics, 2021 - Springer
Abstract The National Science Foundation's Daniel K. Inouye Solar Telescope (DKIST) will
revolutionize our ability to measure, understand, and model the basic physical processes …

Numerical simulations and observations of Mg II in the solar chromosphere

VH Hansteen, J Martinez-Sykora… - The Astrophysical …, 2023 - iopscience.iop.org
The Mg ii h and k lines are among the best diagnostic tools of the upper solar
chromosphere. This region of the atmosphere is of particular interest, as it is the lowest …

Two-fluid modeling of acoustic wave propagation in gravitationally stratified isothermal media

F Zhang, S Poedts, A Lani, B Kuźma… - The Astrophysical …, 2021 - iopscience.iop.org
To study acoustic wave propagation and the corresponding energy deposition in partially
ionized plasmas, we use a two-fluid computational model that treats neutrals and charged …

Multifluid simulations of upper-chromospheric magnetic reconnection with Helium–Hydrogen mixture

QM Wargnier, J Martinez-Sykora… - The Astrophysical …, 2023 - iopscience.iop.org
Our understanding of magnetic reconnection (MR) under chromospheric conditions remains
limited. Recent observations have demonstrated the important role of ion–neutral …