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Open Access Article     |     Next >>   Contents Vol 24(4)

Science with the Australian Square Kilometre Array Pathfinder

S. Johnston A X, M. Bailes B, N. Bartel C, C. Baugh D, M. Bietenholz C W, C. Blake B, R. Braun A, J. Brown E, S. Chatterjee F, J. Darling G, A. Deller B, R. Dodson H, P. G. Edwards A, R. Ekers A, S. Ellingsen I, I. Feain A, B. M. Gaensler F, M. Haverkorn J, G. Hobbs A, A. Hopkins F, C. Jackson A, C. James K, G. Joncas L, V. Kaspi M, V. Kilborn B, B. Koribalski A, R. Kothes E, T. L. Landecker N, E. Lenc B, J. Lovell I, J.-P. Macquart O, R. Manchester A, D. Matthews P, N. M. McClure-Griffiths A, R. Norris A, U.-L. Pen Q, C. Phillips A, C. Power B, R. Protheroe K, E. Sadler F, B. Schmidt R, I. Stairs S, L. Staveley-Smith T, J. Stil E, R. Taylor E, S. Tingay U, A. Tzioumis A, M. Walker V, J. Wall S, M. Wolleben N

A Australia Telescope National Facility, CSIRO, Epping NSW 1710, Australia
B Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Hawthorn VIC 3122, Australia
C Department of Physics and Astronomy, York University, Toronto, ON M3J 1P3, Canada
D Institute for Computational Cosmology, University of Durham, Durham, DH1 3LE, UK
E Department of Physics and Astronomy, University of Calgary, Calgary, AB T2N 1N4, Canada
F School of Physics, University of Sydney, Sydney NSW 2006, Australia
G Center for Astrophysics and Space Astronomy, University of Colorado, Boulder CO 80309-0389, USA
H Observatorio Astronómico Nacional, 28800 Alcalá de Henares, Spain
I School of Mathematics and Physics, University of Tasmania, Hobart TAS 7001, Australia
J NRAO Jansky Fellow: Astronomy Dept, University of California-Berkeley, Berkeley CA 94720, USA
K School of Chemistry & Physics, University of Adelaide, Adelaide SA 5006, Australia
L Département de Physique et Observatoire du Mont Mégantic, Université Laval, Québec, QC G1K 7P4, Canada
M Department of Physics, McGill University, Montreal, QC H3A 2T8, Canada
N Dominion Radio Astrophysical Observatory, Herzberg Institute of Astrophysics, NRC, Penticton, BC V2A 6J9, Canada
O NRAO Jansky Fellow: Astronomy Department, California Institute of Technology, Pasadena CA 91125, USA
P Department of Physics, La Trobe University, Bundoora VIC 3086, Australia
Q Canadian Insititute for Theoretical Astrophysics, University of Toronto, Toronto, ON M5S 3H8, Canada
R Mount Stromlo and Siding Spring Observatory, Weston Creek ACT 2601, Australia
S Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
T School of Physics, University of Western Australia, Crawley WA 6009, Australia
U Department of Imaging and Applied Physics, Curtin University of Technology, Bentley WA 6102, Australia
V Manly Astrophysics Workshop Pty Ltd, Manly NSW 2095, Australia
W Hartebeesthoek Radio Observatory, Krugersdorp 1740, South Africa
X Corresponding author. Email: simon.johnston@csiro.au
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The future of centimetre and metre-wave astronomy lies with the Square Kilometre Array (SKA), a telescope under development by a consortium of 17 countries that will be 50 times more sensitive than any existing radio facility. Most of the key science for the SKA will be addressed through large-area imaging of the Universe at frequencies from a few hundred MHz to a few GHz. The Australian SKA Pathfinder (ASKAP) is a technology demonstrator aimed in the mid-frequency range, and achieves instantaneous wide-area imaging through the development and deployment of phased-array feed systems on parabolic reflectors. The large field-of-view makes ASKAP an unprecedented synoptic telescope that will make substantial advances in SKA key science. ASKAP will be located at the Murchison Radio Observatory in inland Western Australia, one of the most radio-quiet locations on the Earth and one of two sites selected by the international community as a potential location for the SKA. In this paper, we outline an ambitious science program for ASKAP, examining key science such as understanding the evolution, formation and population of galaxies including our own, understanding the magnetic Universe, revealing the transient radio sky and searching for gravitational waves.

Keywords: telescopes

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