Zobrazeno 1 - 10
of 155
pro vyhledávání: '"A. Keppens"'
Prominences and coronal rain are two forms of coronal condensations for which we still lack satisfactory details on the formation pathways and conditions under which the two come to exist. We compared prominences that formed via a steady versus stoch
Externí odkaz:
http://arxiv.org/abs/2406.02955
Autor:
Donné, Dion, Keppens, Rony
The mass cycle of solar prominences or filaments is still not completely understood. Researchers agree that these dense structures form by coronal in-situ condensations and plasma siphoning from the underlying chromosphere. In the evaporation-condens
Externí odkaz:
http://arxiv.org/abs/2405.20048
Publikováno v:
A&A 688, A64 (2024)
The formation of the MFRs in the pre-flare stage, and how this leads to coronal rain in a post-eruption magnetic loop is not fully understood. We explore the formation, and eruption of MFRs, followed by the appearance of coronal rain in the post-flar
Externí odkaz:
http://arxiv.org/abs/2405.10688
Turbulent states are ubiquitous in plasmas and the understanding of turbulence is fundamental in modern astrophysics. Numerical simulations, which are the state-of-the-art approach to the study of turbulence, require substantial computing resources.
Externí odkaz:
http://arxiv.org/abs/2405.09587
Large-scale coronal plasma evolutions can be adequately described by magnetohydrodynamics (MHD) equations. However, full multi-dimensional MHD simulations require substantial computational resources. Given the low plasma $\beta$ in the solar corona,
Externí odkaz:
http://arxiv.org/abs/2404.17056
Autor:
Zhou, Xinping, Shen, Yuandeng, Yuan, Ding, Keppens, Rony, Zhao, Xiaozhou, Fu, Libo, Tang, Zehao, Wang, Jiaoyang, Zhou, Chengrui
Publikováno v:
Nat Commun 15, 3281 (2024)
Electromagnetic wave lensing, a common physical phenomenon recognized in visible light for centuries, finds extensive applications in manipulating light in optical systems such as telescopes and cameras. Magnetohydrodynamic wave is a common perturbat
Externí odkaz:
http://arxiv.org/abs/2404.12044
The hour-long, gradual phase of solar flares is well-observed across the electromagnetic spectrum, demonstrating many multi-phase aspects, where cold condensations form within the heated post-flare system, but a complete three-dimensional (3D) model
Externí odkaz:
http://arxiv.org/abs/2403.19204
In this paper we study the role of radiative cooling in a two-fluid model consisting of coupled neutrals and charged particles. We first analyze the linearized two-fluid equations where we include radiative losses in the energy equation for the charg
Externí odkaz:
http://arxiv.org/abs/2403.11900
Solar prominences observed close to the limb commonly include a bright feature that, from the perspective of the observer, runs along the interface between itself and the underlying chromosphere. Despite several idealised models being proposed to exp
Externí odkaz:
http://arxiv.org/abs/2403.09931
We present a study of energetic-electron trapping and acceleration in the Kelvin-Helmholtz-induced magnetohydrodynamic (MHD) turbulence of post-flare loops in the solar corona. Using the particle-tracing capabilities of MPI-AMRVAC 3.0, we evolve ense
Externí odkaz:
http://arxiv.org/abs/2403.07107