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相关论文: Numerical Modeling of Prominences and Coronal Rain…

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We review major achievements in our understanding of multiphase coronal plasma, where cool-dense and hot-tenuous matter coexists, brought about by advances in modeling and theory, inspired by observations. We give an overview of models that…

太阳与恒星天体物理 · 物理学 2025-10-30 Rony Keppens , Yuhao Zhou , Chun Xia

We report on the development of MPI-AMRVAC version 2.0, which is an open-source framework for parallel, grid-adaptive simulations of hydrodynamic and magnetohydrodynamic (MHD) astrophysical applications. The framework now supports radial…

太阳与恒星天体物理 · 物理学 2018-02-21 C. Xia , J. Teunissen , I. El Mellah , E. Chane , R. Keppens

One of the most striking structures in the solar atmosphere are prominences, predominantly coronal structures, with thermodynamic conditions that vary from chromospheric internally to the corona that surrounds them. These structures play an…

太阳与恒星天体物理 · 物理学 2025-05-14 V. Jerčić , B. Popescu Braileanu , R. Keppens

Adopting the MPI-AMRVAC code, we present a 2.5-dimensional magnetohydrodynamic (MHD) simulation, which includes thermal conduction and radiative cooling, to investigate the formation and evolution of the coronal rain phenomenon. We perform…

太阳与恒星天体物理 · 物理学 2022-03-09 Xiaohong Li , Rony Keppens , Yuhao Zhou

It is not fully understood why some solar filaments erupt while others do not. Those that do typically undergo a slow rise followed by an acceleration phase, though this transition requires further investigation. Erupting prominences have…

太阳与恒星天体物理 · 物理学 2026-03-25 Dion Donné , Yuhao Zhou , Hebe Cremades , Rony Keppens

In this paper we present an update on the open source MPI-AMRVAC simulation toolkit where we focus on solar- and non-relativistic astrophysical magneto-fluid dynamics. We highlight recent developments in terms of physics modules such as…

天体物理仪器与方法 · 物理学 2015-06-22 O. Porth , C. Xia , T. Hendrix , S. P. Moschou , R. Keppens

Computational astrophysics routinely combines grid-adaptive capabilities with modern shock-capturing, high resolution spatio-temporal schemes on multi-dimensional hydro- and magnetohydrodynamics. We provide an update on developments within…

天体物理仪器与方法 · 物理学 2023-05-17 Rony Keppens , Beatrice Popescu Braileanu , Yuhao Zhou , Wenzhi Ruan , Chun Xia , Yang Guo , Niels Claes , Fabio Bacchini

We present a 2.5-dimensional magnetohydrodynamic simulation of a systematically rotating prominence inside its coronal cavity using the open-source \texttt{MPI-AMRVAC} code. Our simulation starts from a non-adiabatic, gravitationally…

太阳与恒星天体物理 · 物理学 2023-07-28 Valeriia Liakh , Rony 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 collisional coupling between neutral and charged particles…

太阳与恒星天体物理 · 物理学 2022-08-10 B. Popescu Braileanu , R. Keppens

Prominences in the solar atmosphere represent an intriguing and delicate balance of forces and thermodynamics in an evolving magnetic topology. How this relatively cool material comes to reside at coronal heights, and what drives its…

太阳与恒星天体物理 · 物理学 2021-02-24 Jack Jenkins , Rony Keppens

Solar prominences are magnetic structures incarcerating cool and dense gas in an otherwise hot solar corona. Prominences can be categorized as quiescent and active. Their origin and the presence of cool gas (~$10^4$K) within the hot…

太阳与恒星天体物理 · 物理学 2023-04-03 Swati Routh , Snehanshu Saha , Atul Bhat , M. N. Sundar

Coronal mass ejections (CMEs) are large eruptions close to the solar surface, where plasma is ejected outwards into space at large speeds. When directed towards Earth, they interfere with Earth's magnetic fields and cause strong…

太阳与恒星天体物理 · 物理学 2023-05-25 Tinatin Baratashvili , Christine Verbeke , Rony Keppens , Stefaan Poedts

Radiation controls the dynamics and energetics of many astrophysical environments. To capture the coupling between the radiation and matter, however, is often a physically complex and computationally expensive endeavour. We develop a…

天体物理仪器与方法 · 物理学 2022-01-19 N. Moens , J. O. Sundqvist , I. El Mellah , L. Poniatowski , J. Teunissen , R. Keppens

Context. Multi-dimensional solar flare simulations have not yet included detailed analysis of the lower atmospheric responses such as down-flowing chromospheric compressions and chromospheric evaporation processes. Aims. We present an…

太阳与恒星天体物理 · 物理学 2024-02-02 Malcolm Druett , Wenzhi Ruan , Rony 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…

太阳与恒星天体物理 · 物理学 2024-06-06 V. Jerčić , J. M. Jenkins , R. Keppens

We intend to investigate the underlying physics for the coronal rain phenomenon in a representative bipolar magnetic field, including the formation and the dynamics of coronal rain blobs. With the MPI-AMRVAC code, we performed three…

太阳与恒星天体物理 · 物理学 2017-07-05 Chun Xia , Rony Keppens , Xia Fang

The Sun's outer atmosphere, the corona, is maintained at mega-Kelvin temperatures and fills the heliosphere with a supersonic outflowing wind. The dissipation of magnetic waves and direct electric currents are likely to be the most…

太阳与恒星天体物理 · 物理学 2025-03-21 A. K. Srivastava , Sripan Mondal , Eric R. Priest , Sudheer K. Mishra , David I. Pontin , R. Y. Kwon , Ding Yuan , K. Murawski , Ayumi Asai

Prominences, or filaments, are a striking phenomenon in the solar atmosphere. Besides their own rich features and dynamics, they are related to many other activities, such as solar flares and coronal mass ejections (CMEs). In the past…

太阳与恒星天体物理 · 物理学 2014-07-08 P. F. Chen

Modeling the solar atmosphere is challenging due to its layered structure and multi-scale dynamics. We aim to validate the new radiative MHD code MAGEC, which combines the MANCHA and MAGNUS codes into a finite-volume, shock-capturing…

太阳与恒星天体物理 · 物理学 2025-11-10 Anamaría Navarro , E. Khomenko , N. Vitas , T. Felipe

The solar atmosphere may be heated by Alfven waves that propagate up from the convection zone and dissipate their energy in the chromosphere and corona. To further test this theory, we consider wave heating in an active region observed on…

太阳与恒星天体物理 · 物理学 2015-06-16 M. Asgari-Targhi , A. A. van Ballegooijen , S. R. Cranmer , E. E. DeLuca
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