1. Department of Physics, University of Surrey , Guildford GU2 7XH , UK
2. Institut de Ciències del Cosmos (ICCUB) , Universitat de Barcelona, Martí i Franquès 1, E-08028 Barcelona , Spain
3. Institut d’Estudis Espacials de Catalunya (IEEC) , E-08034 Barcelona , Spain
4. Sub-department of Astrophysics, University of Oxford , Keble Road, Oxford OX1 3RH , UK
5. Department of Physics and Astronomy, University College London , London WC1E 6BT , UK
6. Lund Observatory, Division of Astrophysics, Department of Physics, Lund University , Box 43, SE-221 00 Lund , Sweden
7. Département d’Astrophysique/AIM , CEA/IRFU, CNRS/INSU, Université Paris-Saclay , F-91191 Gif-Sur-Yvette , France