1. CEA/Irfu/SAp Saclay, Laboratoire AIM, F-91191 Gif-sur-Yvette, France
2. Institut d'Astrophysique de Paris, UMR7095 CNRS, Université Pierre and Marie Curie, 98 bis boulevard Arago, F-75014 Paris, France
3. Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, UK
4. Centre for Astrophysics and Supercomputing, Swinburne University of Technology, PO Box 218, Hawthorn, VIC 3122, Australia
5. ARC Centre of Excellence for All-sky Astrophysics (CAASTRO)
6. Argelander-Institut für Astronomie, Auf dem Hügel 71, D-53121 Bonn, Germany
7. Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC V6T 1Z1, Canada
8. Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
9. Leiden Observatory, Leiden University, Niels Bohrweg 2, NL-2333 CA Leiden, the Netherlands