output
20092024
most citedSpontaneous current-layer fragmentation and cascading reconnection in solar flares: I. Model and analysis

161 citations

Showing astro-ph.SRShow all

7 papers · 1 filter

astro-ph.SR2017★ 22 cited

Evolution of Relative Magnetic Helicity: New Boundary Conditions for the Vector Potential

Shangbin Yang, Joerg Buechner, Jan Skala +1

We recently proposed a method to calculate the relative magnetic helicity in a finite volume for a given magnetic field which however required the flux to be balanced separately on…

astro-ph.SR2016★ 8 cited

Numerical RHD simulations of flaring chromosphere with Flarix

P. Heinzel, J. Kasparova, M. Varady +2

Flarix is a radiation-hydrodynamical (RHD) code for modeling of the response of the chromosphere to a beam bombardment during solar flares. It solves the set of hydrodynamic conser…

astro-ph.SR2016★ 5 cited

Hybrid simulations of chromospheric HXR flare sources

Z. Moravec, M. Varady, J. Kasparova +1

Recent measurements of vertical extents and positions of the chromospheric hard X-ray (HXR) flare sources based on Ramaty High-Energy Spectroscopic Imager (RHESSI) observations sho…

astro-ph.SR2014★ 26 cited

The 3D MHD code GOEMHD3 for large-Reynolds-number astrophysical plasmas

J. Skála, F. Baruffa, J. Büchner +1

The numerical simulation of turbulence and flows in almost ideal, large-Reynolds-number astrophysical plasmas motivates the implementation of almost conservative MHD computer codes…

astro-ph.SR2014★ 22 cited

Modifications of thick-target model: re-acceleration of electron beams by static and stochastic electric fields

M. Varady, M. Karlický, Z. Moravec +1

We study two modifications of the collisional thick-target model (CTTM) based on the global and local re-acceleration of non-thermal electrons by static and stochastic electric fie…

astro-ph.SR2010★ 161 cited

Spontaneous current-layer fragmentation and cascading reconnection in solar flares: I. Model and analysis

Miroslav Bárta, Jörg Büchner, Marian Karlický +1

Magnetic reconnection is commonly considered as a mechanism of solar (eruptive) flares. A deeper study of this scenario reveals, however, a number of open issues. Among them is the…

astro-ph.SR2009★ 51 cited

Response of optical hydrogen lines to beam heating: I. Electron beams

J. Kasparova, M. Varady, P. Heinzel +2

We investigate the role of non-thermal electrons in the formation regions of Halpha, Hbeta, and Hgamma lines in order to unfold their influence on the formation of these lines. We…