¹ Cavendish Astrophysics, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 OHE, UK
² Kavli Institute for Cosmology Cambridge, Madingley Road, Cambridge CB3 OHA, UK
³ School of Physics and Astronomy, Cardiff University, Queen's Buildings, The Parade, Cardiff CF24 3AA, UK
⁴ Jet Propulsion Laboratory, 4800 Oak Grove Dr., Pasadena, CA 91109, USA
⁵ California Institute of Technology, Pasadena, CA 91125, USA
⁶ Kavli Institute for Particle Astrophysics and Cosmology and Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA
⁷ Department of Experimental Physics, National University of Ireland Maynooth, Maynooth, Co. Kildare, Republic of Ireland
⁸ Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, UK
⁹ Kavli Institute for Cosmological Physics, Department of Astronomy & Astrophysics, Enrico Fermi Institute, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA
¹⁰ APC/Université Paris 7-Denis Diderot/CNRS, Bâtiment Condorcet, 10, rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France
¹¹ School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK
¹² Current address: CENTRA, Departamento de Física, Edifício Ciência, Piso 4, Instituto Superior Técnico - IST, Universidade Técnica de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
¹³ Current address: NASA Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
¹⁴ Current address: Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK
¹⁵ Current address: Infrared Processing and Analysis Center, California Institute of Technology, Pasadena, CA 91125, USA