1. European Southern Observatory, Karl-Schwarzschildstrasse 2, D-85748 Garching bei München, Germany
2. Aix Marseille Université, CNRS, LAM (Laboratoire d’Astrophysique de Marseille) UMR 7326, F-13388, Marseille, France
3. Department of Physics and Astronomy, University of South Carolina, Columbia, SC 29208, USA
4. GEPI, Observatoire de Paris, PSL Research University, CNRS, Place Jules Janssen, F-92190 Meudon, France
5. Department of Astronomy and Astrophysics, University of Chicago, 5640 S. Ellis Ave, Chicago, IL 60637, USA
6. Osservatorio Astronomico di Trieste - INAF, Via Tiepolo 11, I-34143 Trieste, Italy
7. Department of Physics, Georgia Southern University, Statesboro, GA 30460, USA