Field Deployment of Prototype Antenna Tiles for the Mileura Widefield Array Low Frequency Demonstrator
Date
2007
Authors
Bowman, Judd D
Barnes, David G
Briggs, Franklin
Corey, Brian E
Lynch, Mervyn J
Bhat, N D Ramesh
Cappallo, Roger C
Doeleman, Sheperd S
Fanous, Brian J
Herne, David
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Volume Title
Publisher
University of Chicago Press
Abstract
Experiments were performed with prototype antenna tiles for the Mileura Widefield Array Low Frequency Demonstrator (MWA LFD) to better understand the wide-field, wide-band properties of their design and to characterize the radio-frequency interference (RFI) between 80 and 300 MHz at the site in Western Australia. Observations acquired during the 6 month deployment confirmed the predicted sensitivity of the antennas, sky-noise-dominated system temperatures, and phase-coherent interferometric measurements. The radio spectrum is remarkably free of strong terrestrial signals, with the exception of two narrow frequency bands allocated to satellite downlinks, and rare bursts due to ground-based transmissions being scattered from aircraft and meteor trails. Results indicate the potential of the MWA LFD to make significant achievements in its three key science objectives: epoch of reionization science, heliospheric science, and radio transient detection.
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Keywords
Keywords: Instrumentation: interferometers; Radio continuum: general; Site testing; Telescopes
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Source
Astronomical Journal
Type
Journal article
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DOI
Restricted until
2037-12-31
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