Affiliation: | School of Physics, University of New South Wales, Sydney, NSW 2052, Australia;Mount Stromlo Observatory, The Australian National University, Weston Creek, ACT 2611, Australia;Astrophysics Group, HH Wills Physics Laboratory, University of Bristol, Tyndall Avenue, BS8 1TL;Harvard–Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA |