1Department of Particle Physics and Astrophysics, Faculty of Physics, The Weizmann Institute of Science, P.O. Box 26, Rehovot 76100, Israel 2Benoziyo Fellow, Email: sladja.ast@gmail.com, ORCID: 0000-0003-1416-8069 3Finnish Centre for Astronomy with ESO (FINCA), University of Turku, V¨ais¨al¨antie 20, FI-21500 Kaarina, Finland 4Max Planck Institute for Astronomy, K¨onigstuhl 17, D-69117, Heidelberg, Germany 5Instituto de Astrof´ısica de Canarias, V´ıa L´actea, La Laguna, Tenerife, Spain 6Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, U.S.A. 7INFN Gran Sasso Science Institute, viale F. Crispi 7, 67100 L’Aquila, Italy 8Department of Physics, Astronomy and Geosciences Towson University, Towson, MD 21252, U.S.A. 9Department of Physics and Astronomy, Rutgers University, 136 Frelinghuysen Road, Piscataway, NJ 08854, U.S.A. 10University of Bern, Center for Space and Habitability, Sidlerstrasse 5, CH-3012, Bern, Switzerland