1. IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
2. Université Paris Diderot, AIM, Sorbonne Paris Cité, CEA, CNRS, F-91191 Gif-sur-Yvette, France
3. GEPI, Observatoire de Paris, PSL Research University, CNRS, Place Jules Janssen, F-92190 Meudon, France
4. Instituto de Astrofsica de Canarias (IAC), E-38205 La Laguna, Tenerife, Spain
5. Universidad de La Laguna, Dpto. Astrofsica, E-38206 La Laguna, Tenerife, Spain
6. INAF Osservatorio Astronomico di Trieste, Via G. Tiepolo 11, I-34124 Trieste
7. Institute for Astronomy, Astrophysics, Space Applications & Remote Sensing, National Observatory of Athens, GR-15236, Penteli, Greece
8. Department of Physics, University of Crete, GR-71003 Heraklion, Greece
9. Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, NL-1098 XH Amsterdam, the Netherlands
10. Université de Strasbourg, CNRS, Observatoire astronomique de Strasbourg, UMR 7550, F-67000 Strasbourg, France
11. LAM - Laboratoire d'Astrophysique de Marseille, F-13388 Marseille Cedex 13, France