1. Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UK
2. Department of Physics, University of Warwick, Coventry CV4 7AL, UK
3. Department of Physics and Astronomy, The University of Texas at San Antonio, San Antonio, 1-UTSA Circle, TX 78249, USA
4. Department of Physics and Earth Sciences, St. Mary’s University, One Camino Santa Maria, San Antonio, TX 78228, USA
5. The Cosmic Dawn Center, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen Ø, Denmark
6. Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen Ø, Denmark
7. Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot 7610001, Israel
8. Ritter Astrophysical Research Center, University of Toledo, 2825 West Bancroft Street, M. S. 113, Toledo, OH 43606, USA