activity
20062025
most citedEvolution of Magnetic Field and Energy in A Major Eruptive Active Region Based on SDO/HMI Observation

397 citations · 2.5k across the 39 of their papers we have counts for

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6 papers · 1 filter

astro-ph2008★ 44 cited

First nonlinear force-free field extrapolations of SOLIS/VSM data

J. K. Thalmann, T. Wiegelmann, N. -E. Raouafi

We study the coronal magnetic field structure inside active regions and its temporal evolution. We attempt to compare the magnetic configuration of an active region in a very quiet…

astro-ph2008★ 63 cited

Can We Improve the Preprocessing of Photospheric Vector Magnetograms by the Inclusion of Chromospheric Observations?

T. Wiegelmann, J. K. Thalmann, C. J. Schrijver +2

The solar magnetic field is key to understanding the physical processes in the solar atmosphere. Nonlinear force-free codes have been shown to be useful in extrapolating the corona…

astro-ph2008

Preprocessing of Hinode/SOT vector magnetograms for nonlinear force-free coronal magnetic field modelling

T. Wiegelmann, J. K. Thalmann, C. J. Schrijver +2

The solar magnetic field is key to understanding the physical processes in the solar atmosphere. Nonlinear force-free codes have been shown to be useful in extrapolating the corona…

astro-ph2007★ 305 cited

Non-linear force-free field modeling of a solar active region around the time of a major flare and coronal mass ejection

C. J. Schrijver, M. L. DeRosa, T. Metcalf +14

Solar flares and coronal mass ejections are associated with rapid changes in field connectivity and powered by the partial dissipation of electrical currents in the solar atmospher…

astro-ph2007★ 91 cited

Large amplitude oscillatory motion along a solar filament

B. Vrsnak, A. M. Veronig, J. K. Thalmann +1

Large amplitude oscillations of solar filaments is a phenomenon known for more than half a century. Recently, a new mode of oscillations, characterized by periodical plasma motions…

astro-ph2006★ 87 cited

Interaction of a Moreton/EIT wave and a coronal hole

Astrid M. Veronig, Manuela Temmer, Bojan Vrsnak +1

We report high-cadence H-alpha observations of a distinct Moreton wave observed at Kanzelhoehe Solar Observatory associated with the 3B/X3.8 flare and CME event of 2005 January 17.…