49 citations · 161 across the 6 of their papers we have counts for
6 papers
The magnetic origin of the outer boundaries of sunspots
Markus Schmassmann, Nazaret Bello González, Jan Jurčák +1
Context. Sunspot boundaries are commonly outlined by contours of the continuum intensity. However, their magnetic nature has not yet been fully characterised. Aims. We investigate…
Characterization of magneto-convection in sunspots -- The Gough & Tayler stability criterion in MURaM sunspot simulations
M. Schmassmann, M. Rempel, N. Bello González +2
We analyse a sunspot simulation in an effort to understand the origin of the convective instabilities giving rise to the penumbral and umbral distinct regimes. We applied the crite…
Slipping reconnection in a solar flare observed in high resolution with the GREGOR solar telescope
M. Sobotka, J. Dudík, C. Denker +23
A small flare ribbon above a sunspot umbra in active region 12205 was observed on November 7, 2014, at 12:00 UT in the blue imaging channel of the 1.5 m GREGOR telescope, using a 1…
Dynamics of the solar atmosphere above a pore with a light bridge
M. Sobotka, M. Švanda, J. Jurčák +3
Context: Solar pores are small sunspots lacking a penumbra that have a prevailing vertical magnetic field component. They can include light bridges at places with locally reduced m…
A new type of small-scale downflow patches in sunspot penumbrae
Y. Katsukawa, J. Jurcak
A sunspot penumbra is observationally examined to reveal properties of small-scale flow structures and how they are related to the filamentary magnetic structures and the Evershed…
The Analysis of Penumbral Fine Structure Using an Advanced Inversion Technique
Jan Jurčák, Luis Bellot Rubio, Kiyoshi Ichimoto +8
We present a method to study the penumbral fine structure using data obtained by the spectropolarimeter onboard HINODE. For the first time, the penumbral filaments can be considere…