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Detection of Crab Giant Pulses Using the Mileura Widefield Array Low Frequency Demonstrator Field Prototype System

Bhat, N D Ramesh; Wayth, Randall B; Knight, Haydon S; Bowman, Judd D; Oberoi, Divya; Barnes, David G; Briggs, Franklin; Cappallo, Roger C; Herne, David; Kocz, J.; Lonsdale, Colin J; Lynch, Mervyn J; Stansby, Bruce; Stevens, J; Torr, Glen; Webster, Rachel L; Wyithe, J Stuart B

Description

We report on the detection of giant pulses from the Crab Nebula pulsar at a frequency of 200 MHz using the field deployment system designed for the Mileura Widefield Array's Low Frequency Demonstrator (MWA-LFD). Our observations are among the first high-quality detections at such low frequencies. The measured pulse shapes are deconvolved for interstellar pulse broadening, yielding a pulse-broadening time of 670 ± 100 μs, and the implied strength of scattering (scattering measure) is the lowest...[Show more]

CollectionsANU Research Publications
Date published: 2007
Type: Journal article
URI: http://hdl.handle.net/1885/17672
Source: Astrophysical Journal, The
DOI: 10.1086/519444

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