Daniel Pacheco^1,2, Neus Agueda³, Nicolas Wijsen^4,5, Angels Aran⁵, David Lario⁶, Raul Gomez-Herrero⁷, Bernd Heber⁸, Blas Sanahuja⁵ and Robert F Wimmer-Schweingruber², (1)Universidad Barcelona, Barcelona, Spain, (2)University of Kiel, Institute for Experimental and Applied Physics, Kiel, Germany, (3)University of Barcelona, Barcelona, Spain, (4)KU Leuven, Centre for mathematical Plasma-Astrophysics, Leuven, Belgium, (5)Universitat de Barcelona, Física Quàntica i Astrofísica, Institut de Ciències del Cosmos (ICCUB), Barcelona, Spain, (6)NASA Goddard Space Flight Center, Heliophysics Science Division, Greenbelt, MD, United States, (7)University of Alcala, Alcala de Henares, Spain, (8)University of Kiel, Kiel, Germany