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Title:
The Commensal Real-Time ASKAP Fast-Transients (CRAFT) Survey
Authors:
Macquart, Jean-Pierre; Bailes, M.; Bhat, N. D. R.; Bower, G. C.; Bunton, J. D.; Chatterjee, S.; Colegate, T.; Cordes, J. M.; D'Addario, L.; Deller, A.; Dodson, R.; Fender, R.; Haines, K.; Halll, P.; Harris, C.; Hotan, A.; Johnston, S.; Jones, D. L.; Keith, M.; Koay, J. Y.; Lazio, T. J. W.; Majid, W.; Murphy, T.; Navarro, R.; Phillips, C.; Quinn, P.; Preston, R. A.; Stansby, B.; Stairs, I.; Stappers, B.; Staveley-Smith, L.; Tingay, S.; Thompson, D.; van Straten, W.; Wagstaff, K.; Warren, M.; Wayth, R.; Wen, L.; CRAFT Collaboration
Affiliation:
AA(ICRAR/Curtin Institute of Radio Astronomy, GPO Box U1987, Perth, WA 6845 ), AB(Centre for Astrophysics and Supercomputing, Swinburne University of Technology, PO Box 218, Hawthorn, VIC 3122), AC(Astronomy Department & Radio Astronomy Laboratory, University of California, Berkeley, CA 94720, USA), AD(Astronomy Department & Radio Astronomy Laboratory, University of California, Berkeley, CA 94720, USA), AE(Australia Telescope National Facility, CSIRO, PO Box 76, Epping, NSW 1710), AF(Sydney Institute for Astronomy (SIfA), School of Physics, University of Sydney, NSW 2006; Astronomy Department, Cornell University, Ithaca, NY 14853, USA), AG(ICRAR/Curtin Institute of Radio Astronomy, GPO Box U1987, Perth, WA 6845), AH(Astronomy Department, Cornell University, Ithaca, NY 14853, USA), AI(Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA), AJ(National Radio Astronomy Observatory (NRAO), PO Box 0, Socorro, NM 87801, USA), AK(ICRAR/University of Western Australia, Fairway 7, Crawley, Perth, WA 6009), AL(School of Physics and Astronomy, University of Southampton, Highfield, Southampton SO17 1BJ, UK and Astronomical Institute 'Anton Pannekoek', University of Amsterdam, Kruislaan 403, 1098 SJ Amsterdam, The Netherlands), AM(ICRAR/University of Western Australia, Fairway 7, Crawley, Perth, WA 6009), AN(ICRAR/Curtin Institute of Radio Astronomy, GPO Box U1987, Perth, WA 6845), AO(ICRAR/University of Western Australia, Fairway 7, Crawley, Perth, WA 6009), AP(ICRAR/Curtin Institute of Radio Astronomy, GPO Box U1987, Perth, WA 6845), AQ(Australia Telescope National Facility, CSIRO, PO Box 76, Epping, NSW 1710), AR(Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA), AS(Australia Telescope National Facility, CSIRO, PO Box 76, Epping, NSW 1710), AT(ICRAR/Curtin Institute of Radio Astronomy, GPO Box U1987, Perth, WA 6845), AU(Naval Research Laboratory, 4555 Overlook Ave., SW, Washington, DC 20375, USA), AV(Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA), AW(Sydney Institute for Astronomy (SIfA), School of Physics, University of Sydney, NSW 2006), AX(Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA), AY(Australia Telescope National Facility, CSIRO, PO Box 76, Epping, NSW 1710), AZ(ICRAR/University of Western Australia, Fairway 7, Crawley, Perth, WA 6009), BA(Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA), BB(ICRAR/Curtin Institute of Radio Astronomy, GPO Box U1987, Perth, WA 6845), BC(Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1, Canada), BD(Jodrell Bank Centre for Astrophysics, Alan Turing Building, University of Manchester, Manchester M13 9PL, UK), BE(RAR/University of Western Australia, Fairway 7, Crawley, Perth, WA 6009), BF(ICRAR/Curtin Institute of Radio Astronomy, GPO Box U1987, Perth, WA 6845), BG(Jet Propulsion Laboratory, California Ins titute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA), BH(Centre for Astrophysics and Supercomputing, Swinburne University of Technology, PO Box 218, Hawthorn, VIC 3122), BI(Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA), BJ(Theoretical Astrophysics Division, Los Alamos National Laboratory, Los Alamos, NM 87543, USA), BK(ICRAR/Curtin Institute of Radio Astronomy, GPO Box U1987, Perth, WA 6845), BL(ICRAR/University of Western Australia, Fairway 7, Crawley, Perth, WA 6009)
Publication:
Publications of the Astronomical Society of Australia, Volume 27, Issue 3, pp. 272-282. (PASA Homepage)
Publication Date:
06/2010
Origin:
PASA
Astronomy Keywords:
gravitational waves, ISM: structure, scattering, surveys, techniques: radar astronomy
Abstract Copyright:
(c) 2010 Astronomical Society of Australia
DOI:
10.1071/AS09082
Bibliographic Code:
2010PASA...27..272M

Abstract

We are developing a purely commensal survey experiment for fast (<5 s) transient radio sources. Short-timescale transients are associated with the most energetic and brightest single events in the Universe. Our objective is to cover the enormous volume of transients parameter space made available by ASKAP, with an unprecedented combination of sensitivity and field of view. Fast timescale transients open new vistas on the physics of high brightness temperature emission,extreme states of matter and the physics of strong gravitational fields. In addition, the detection of extragalactic objects affords us an entirely new and extremely sensitive probe on the huge reservoir of baryons present in the IGM. We outline here our approach to the considerable challenge involved in detecting fast transients, particularly the development of hardware fast enough to dedisperse and search the ASKAP data stream at or near real-time rates. Through CRAFT, ASKAP will provide the testbed of many of the key technologies and survey modes proposed for high time resolution science with the SKA.
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