[1
]International Centre for Radio Astronomy Research, Curtin University, GPO Box U1987,
Perth, WA 6845, Australia
[2
]CSIRO Astronomy and Space Science, PO Box 1130, Bentley, WA 6102, Australia
[3
]ASTRON, Netherlands Institute for Radio Astronomy, Oude Hoogeveensedijk 4, NL-7991
PD Dwingeloo, the Netherlands
[4
]Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904,
NL-1098 XH Amsterdam, the Netherlands
[5
]LPC2E, Université d’Orléans/CNRS, F-45071 Orléans cedex 2, France
[6
]Station de Radioastronomie de Nançay, Observatoire de Paris, PSL Research University,
CNRS, Université d’Orléans, OSUC, F-18330 Nançay, France
[7
]Oxford Astrophysics, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, UK
[8
]Department of Physics & Astronomy, University of the Western Cape, Private Bag X17,
Bellville 7535, South Africa
[9
]Department of Physics and Electronics, Rhodes University, PO Box 94, Grahamstown 6140,
South Africa
[10
]SKA Organisation, Jodrell Bank Observatory, Macclesfield, SK11 9DL, UK
[11
]Astro Space Centre, Lebedev Physical Institute, Russian Academy of Sciences, Profsoyuznaya
Str 84/32, Moscow 117997, Russia
[12
]Max Planck Institute for Radio Astronomy, Auf dem Hügel 69, D-53121 Bonn, Germany
[13
]Department of Physics, McGill University, 3600 University Street, Montréal, QC H3A
2T8, Canada
[14
]McGill Space Institute, McGill University, 3550 University Street, Montréal, QC H3A
2A7, Canada
[15
]INAF – Osservatorio Astronomico di Cagliari, via della Scienza 5, I-09047 Selargius
(CA), Italy
[16
]Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University
of Manchester, Manchester M13 9PL, UK
[17
]Fakultät für Physik, Universität Bielefeld, Postfach 100131, D-33501 Bielefeld, Germany
[18
]Department of Astrophysics/IMAPP, Radboud University Nijmegen, PO Box 9010, NL-6500
GL Nijmegen, the Netherlands
[19
]INAF – Istituto di Radioastronomia, Via Gobetti 101, I-40129 Bologna, Italy
[20
]Max Planck Institut für Astrophysik, Karl-Schwarzschild-Str 1, D-85740 Garching, Germany
[21
]Dunlap Institute for Astronomy and Astrophysics, University of Toronto, 50 St George
Street, Toronto, ON M5S 3H4, Canada