388 citations · 746 across the 13 of their papers we have counts for
13 papers
The first gradual solar energetic particle event with enhanced 3He abundance on Solar Orbiter
R. Bučík, G. M. Mason, R. Gómez-Herrero +16
The origin of 3He abundance enhancements in coronal mass ejection (CME)-driven shock gradual solar energetic particle (SEP) events remains largely unexplained. Two mechanisms have…
Effect of Size of the Computational Domain on Spherical Nonlinear Force-Free Modeling of Coronal Magnetic Field Using SDO/HMI Data
Tilaye Tadesse, Thomas Wiegelmann, Peter MacNeice
The solar coronal magnetic field produces solar activity, including extremely energetic solar flares and coronal mass ejections (CMEs). Knowledge of the structure and evolution of…
Global Solar Free Magnetic Energy and Electric Current Density Distribution of Carrington Rotation 2124
Tilaye Tadesse, T. Wiegelmann, Pevtsov A Alexei +2
Solar eruptive phenomena, like flares and coronal mass ejections(CMEs) are governed by magnetic fields. To describe the structure of these phenomena one needs information on the ma…
First use of synoptic vector magnetograms for global nonlinear force free coronal magnetic field models
Tilaye Tadesse, T. Wiegelmann, S. Gosain +2
The magnetic field permeating the solar atmosphere is generally thought to provide the energy for much of the activity seen in the solar corona, such as flares, coronal mass ejecti…
Modeling coronal magnetic field using spherical geometry: cases with several active regions
Tilaye Tadesse, T. Wiegelmann, K. Olson +1
The magnetic fields in the solar atmosphere structure the plasma, store free magnetic energy and produce a wide variety of active solar phenomena, like flare and coronal mass eject…
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…
Full-disk nonlinear force-free field extrapolation of SDO/HMI and SOLIS/VSM magnetograms
Tilaye Tadesse, T. Wiegelmann, B. Inhester +3
Extrapolation codes in Cartesian geometry for modelling the magnetic field in the corona do not take the curvature of the Sun's surface into account and can only be applied to rela…
How to optimize nonlinear force-free coronal magnetic field extrapolations from SDO/HMI vector magnetograms?
T. Wiegelmann, J. K. Thalmann, B. Inhester +3
The SDO/HMI instruments provide photospheric vector magnetograms with a high spatial and temporal resolution. Our intention is to model the coronal magnetic field above active regi…
Coronal Magnetic Field Structure and Evolution for Flaring AR 11117 and its Surroundings
Tilaye Tadesse, T. Wiegelmann, B. Inhester +1
In this study, photospheric vector magnetograms obtained with the Synoptic Optical Long-term Investigations of the Sun survey (SOLIS), are used as boundary conditions to model the…
Magnetic Connectivity between Active Regions 10987, 10988, and 10989 by Means of Nonlinear Force-Free Field Extrapolation
T. Tadesse, T. Wiegelmann, B. Inhester +1
Extrapolation codes for modelling the magnetic field in the corona in cartesian geometry do not take the curvature of the Sun's surface into account and can only be applied to rela…
Nonlinear force-free field extrapolation in spherical geometry: improved boundary data treatment applied to a SOLIS/VSM vector magnetogram
Tilaye Tadesse, T. Wiegelmann, B. Inhester +1
Routine measurements of the solar magnetic field are mainly carried out in the photosphere. Therefore, one has to infer the field strength in the higher layers of the solar atmosph…
Nonlinear force-free coronal magnetic field modelling and preprocessing of vector magnetograms in spherical geometry
T. Tadesse, T. Wiegelmann, B. Inhester
Context: Knowledge about the coronal magnetic field is important to the understanding the structure of the solar corona. We compute the field in the higher layers of the solar atmo…
A Critical Assessment of Nonlinear Force-Free Field Modeling of the Solar Corona for Active Region 10953
Marc L. DeRosa, Carolus J. Schrijver, Graham Barnes +16
Nonlinear force-free field (NLFFF) models are thought to be viable tools for investigating the structure, dynamics and evolution of the coronae of solar active regions. In a series…