11 citations · 11 across the 1 of their papers we have counts for
4 papers
No universal connection between the vertical magnetic field and the umbra-penumbra boundary in sunspots
B. Löptien, A. Lagg, M. van Noort +1
Context. It has been reported that the boundary between the umbra and the penumbra of sunspots occurs at a canonical value of the strength of the vertical magnetic field, independe…
A comparison between solar plage and network properties
D. Buehler, A. Lagg, M. van Noort +1
We compare the properties of kG magnetic structures in the solar network and in active region plage at high spatial resolution. Our analysis used six SP scans of the solar disc cen…
The potential of many-line inversions of photospheric spectropolarimetric data in the visible and near UV
T. L. Riethmüller, S. K. Solanki
Our knowledge of the lower solar atmosphere is mainly obtained from spectropolarimetric observations, which are often carried out in the red or infrared spectral range and almost a…
Formation of a solar Ha filament from orphan penumbrae
D. Buehler, A. Lagg, M. van Noort +1
The formation of an Ha filament in active region (AR) 10953 is described. Observations from the Solar Optical Telescope (SOT) aboard the Hinode satellite starting on 27th April 200…