eCite Digital Repository

Field Deployment of Prototype Antenna Tiles for the Mileura Widefield Array Low Frequency Demonstrator

Citation

Bowman, JD and Barnes, DG and Briggs, FH and Corey, BE and Lynch, MJ and Bhat, NDR and Cappallo, RJ and Doeleman, SS and Fanous, BJ and Herne, D and Hewitt, JN and Johnston, C and Kasper, JC and Kocz, J and Kratzenberg, E and Lonsdale, CJ and Morales, MF and Oberoi, D and Salah, JE and Stansby, B and Stevens, JB and Torr, G and Wayth, R and Webster, RL and Wyithe, JSB, Field Deployment of Prototype Antenna Tiles for the Mileura Widefield Array Low Frequency Demonstrator, The Astronomical Journal, 133, (4) pp. 1505-1518. ISSN 0004-6256 (2007) [Refereed Article]

DOI: doi:10.1086/511068

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. © 2007. The American Astronomical Society. All rights reserved.

Item Details

Item Type:Refereed Article
Research Division:Physical Sciences
Research Group:Astronomical and Space Sciences
Research Field:Galactic Astronomy
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Physical Sciences
Author:Stevens, JB (Dr Jamie Stevens)
ID Code:45696
Year Published:2007
Web of Science® Times Cited:32
Deposited By:Physics
Deposited On:2007-08-01
Last Modified:2008-04-04
Downloads:0

Repository Staff Only: item control page