1. European Southern Observatory , Karl-Schwarzschild-Str. 2, D-85748 Garching, Germany
2. Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA
3. Aix Marseille Université , CNRS, LAM, (Laboratoire d’Astrophysique de Marseille), UMR 7326, F-13388 Marseille, France
4. International Centre for Radio Astronomy Research (ICRAR), M468, University of Western Australia , 35 Stirling Hwy, Crawley,WA 6009, Australia
5. ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) , Canberra, ACT 2611, Australia
6. Cosmic Dawn Center (DAWN), Niels Bohr Institute, University of Copenhagen , Lyngbyvej 2, DK-2100 Copenhagen, Denmark
7. DARK, Niels Bohr Institute, University of Copenhagen , Jagtvej 128, DK-2200 Copenhagen, Denmark
8. Max-Planck-Institut für extraterrestrische Physik (MPE) , Giessenbachstrasse 1, D-85748 Garching bei Müchen, Germany