Matthew J Rickard University College London Daniel Pauli Institute of Astronomy, KU Leuven Rainer Hainich Universitat Potsdam Wolf-Rainer Hamann Universitat Potsdam Derck L. Massa Space Science Institute Lidia Oskinova Universitat Potsdam Timothy N Parsons University College London Raman K. Prinja University College London Varsha Ramachandran Universitat Heidelberg