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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
The High Time Resolution Universe Pulsar Survey - I. System configuration and initial discoveries
Monthly Notices of the Royal Astronomical Society, Volume 409, No. 2, Year 2010
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Description
We have embarked on a survey for pulsars and fast transients using the 13-beam multibeam receiver on the Parkes Radio Telescope. Installation of a digital backend allows us to record 400 MHz of bandwidth for each beam, split into 1024 channels and sampled every 64 μs. Limits of the receiver package restrict us to a 340 MHz observing band centred at 1352 MHz. The factor of 8 improvement in frequency resolution over previous multibeam surveys allows us to probe deeper into the Galactic plane for short-duration signals such as the pulses from millisecond pulsars. We plan to survey the entire southern sky in 42 641 pointings, split into low, mid and high Galactic latitude regions, with integration times of 4200, 540 and 270 s, respectively. Simulations suggest that we will discover 400 pulsars, of which 75 will be millisecond pulsars. With 30 per cent of the mid-latitude survey complete, we have redetected 223 previously known pulsars and discovered 27 pulsars, five of which are millisecond pulsars. The newly discovered millisecond pulsars tend to have larger dispersion measures than those discovered in previous surveys, as expected from the improved time and frequency resolution of our instrument. © 2010 The Authors. Journal compilation © 2010 RAS.
Authors & Co-Authors
Keith, Michael J.
Australia, Sydney
Australia Telescope National Facility
Jameson, Andrew
Australia, Hawthorn
Swinburne University of Technology
Van Straten, Willem V.
Australia, Hawthorn
Swinburne University of Technology
Bailes, Matthew
Australia, Hawthorn
Swinburne University of Technology
Johnston, Simon
Australia, Sydney
Australia Telescope National Facility
Kramer, Michael
Germany, Bonn
Max Planck Institute for Radio Astronomy
United Kingdom, Manchester
The University of Manchester
Possenti, Andrea
Italy, Capoterra
Osservatorio Astronomico Di Cagliari
Bates, Samuel D.
United Kingdom, Manchester
The University of Manchester
Bhat, N. D. R.
Australia, Hawthorn
Swinburne University of Technology
Burgay, Marta
Italy, Capoterra
Osservatorio Astronomico Di Cagliari
Spolaor, Sarah Burke
Australia, Sydney
Australia Telescope National Facility
Australia, Hawthorn
Swinburne University of Technology
D'Amico, Nicolò D.
Italy, Capoterra
Osservatorio Astronomico Di Cagliari
Levin, Lina
Australia, Sydney
Australia Telescope National Facility
Australia, Hawthorn
Swinburne University of Technology
McMahon, Peter
United States, Berkeley
University of California, Berkeley
South Africa, Cape Town
University of Cape Town
Milia, S.
Italy, Capoterra
Osservatorio Astronomico Di Cagliari
Italy, Cagliari
Università Degli Studi Di Cagliari
Stappers, Benjamin W.
United Kingdom, Manchester
The University of Manchester
Statistics
Citations: 264
Authors: 16
Affiliations: 8
Identifiers
Doi:
10.1111/j.1365-2966.2010.17325.x
ISSN:
00358711
e-ISSN:
13652966
Study Design
Cross Sectional Study
Study Approach
Quantitative