91 citations · 225 across the 6 of their papers we have counts for
6 papers
Force-free field modeling of twist and braiding-induced magnetic energy in an active-region corona
J. K. Thalmann, S. K. Tiwari, T. Wiegelmann
The theoretical concept that braided magnetic field lines in the solar corona may dissipate a sufficient amount of energy to account for the brightening observed in the active-regi…
Magnetic structure of solar active region NOAA 11158
P. Vemareddy, A. Ambastha, T. Wiegelmann
Magnetic fields in the solar corona are responsible for a wide range of phenomena. However, any direct measurements of the coronal magnetic fields are very difficult due to lack of…
A Comparison Between Nonlinear Force-Free Field and Potential Field Models Using Full-Disk SDO/HMI Magnetogram
Tilaye Tadesse, T. Wiegelmann, B. Inhester +3
Measurements of magnetic fields and electric currents in the pre-eruptive corona are crucial to study solar eruptive phenomena, like flare and coronal mass ejections(CMEs). However…
Mesogranulation and the solar surface magnetic field distribution
L. Yelles Chaouche, F. Moreno-Insertis, V. Martínez Pillet +9
The relation of the solar surface magnetic field with mesogranular cells is studied using high spatial (~ 100 km) and temporal (~ 30 sec) resolution data obtained with the IMaX ins…
Nonlinear force-free modelling: influence of inaccuracies in the measured magnetic vector
T. Wiegelmann, L. Yelles Chaouche, S. K. Solanki +1
Context: Solar magnetic fields are regularly extrapolated into the corona starting from photospheric magnetic measurements that can suffer from significant uncertainties. Aims: Her…
Computing nonlinear force-free fields in spherical geometry
Thomas Wiegelmann
We describe a newly developed code for the extrapolation of nonlinear force-free coronal magnetic fields in spherical coordinates. The program uses measured vector magnetograms on…