46 citations · 196 across the 10 of their papers we have counts for
6 papers · 2 filters
Spectropolarimetric observations of an arch filament system with the GREGOR solar telescope
H. Balthasar, P. Gömöry, S. J. González Manrique +27
Arch filament systems occur in active sunspot groups, where a fibril structure connects areas of opposite magnetic polarity, in contrast to active region filaments that follow the…
Active region fine structure observed at 0.08 arcsec resolution
R. Schlichenmaier, O. von der Lühe, S. Hoch +19
The various mechanisms of magneto-convective energy transport determines the structure of sunspots and active regions. We characterise the appearance of light bridges and other fin…
Magnetic fields of opposite polarity in sunspot penumbrae
M. Franz, M. Collados, C. Bethge +25
Context. A significant part of the penumbral magnetic field returns below the surface in the very deep photosphere. For lines in the visible, a large portion of this return field c…
Horizontal flow fields in and around a small active region-- The transition period between flux emergence and decay
M. Verma, C. Denker, H. Balthasar +28
Aims. Combining high-resolution and synoptic observations aims to provide a comprehensive description of flux emergence at photospheric level and of the growth process that eventua…
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…
Fitting peculiar spectral profiles in He I 10830 Å absorption features
S. J. González Manrique, C. Kuckein, A. Pastor Yabar +28
The new generation of solar instruments provides better spectral, spatial, and temporal resolution for a better understanding of the physical processes that take place on the Sun.…