114 citations · 867 across the 22 of their papers we have counts for
4 papers · 1 filter
Magnetic Flux and Helicity of Magnetic Clouds
P. Demoulin, M. Janvier, S. Dasso
Magnetic clouds (MCs) are formed by flux ropes (FRs) launched from the Sun as part of coronal mass ejections (CMEs). They carry away an important amount of magnetic flux and helici…
The origin of net electric currents in solar active regions
K. Dalmasse, G. Aulanier, P. Démoulin +3
There is a recurring question in solar physics about whether or not electric currents are neutralized in active regions (ARs). This question was recently revisited using three-dime…
Parallel Evolution of Quasi-separatrix Layers and Active Region Upflows
C. H. Mandrini, D. Baker, P. Démoulin +6
Persistent plasma upflows were observed with Hinode's EUV Imaging Spectrometer (EIS) at the edges of active region (AR) 10978 as it crossed the solar disk. We analyze the evolution…
Testing magnetic helicity conservation in a solar-like active event
E. Pariat, G. Valori, P. Démoulin +1
Magnetic helicity has the remarkable property of being a conserved quantity of ideal magnetohydrodynamics (MHD). Therefore, it could be used as an effective tracer of the magnetic…