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Foreground Contamination in Interferometric Measurements of the Redshifted 21 cm Power Spectrum
Judd D. Bowman, Miguel F. Morales, Jacqueline N. Hewitt
Subtraction of astrophysical foreground contamination from "dirty" sky maps produced by simulated measurements of the Murchison Widefield Array (MWA) has been performed by fitting…
Spectral Index of the Diffuse Radio Background Measured From 100 to 200 MHz
Alan E. E. Rogers, Judd D. Bowman
The mean absolute brightness temperature of the diffuse radio background was measured as a function of frequency in a continuous band between 100 and 200 MHz over an effective soli…
Toward Empirical Constraints on the Global Redshifted 21 cm Brightness Temperature During the Epoch of Reionization
Judd D. Bowman, Alan E. E. Rogers, Jacqueline N. Hewitt
Preliminary results are presented from a simple, single-antenna experiment designed to measure the all-sky radio spectrum between 100 and 200 MHz. The system used an internal compa…
Detection of Crab Giant Pulses Using the Mileura Widefield Array Low Frequency Demonstrator Field Prototype System
N. D. Ramesh Bhat, Randall B. Wayth, Haydon S. Knight +14
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 Fr…
Field Deployment of Prototype Antenna Tiles for the Mileura Widefield Array--Low Frequency Demonstrator
Judd D. Bowman, David G. Barnes, Frank H. Briggs +22
Experiments were performed with prototype antenna tiles for the Mileura Widefield Array--Low Frequency Demonstrator (MWA-LFD) to better understand the widefield, wideband propertie…
Constraints on Fundamental Cosmological Parameters with Upcoming Redshifted 21 cm Observations
Judd D. Bowman, Miguel F. Morales, Jacqueline N. Hewitt
Constraints on cosmological parameters from upcoming measurements with the Mileura Widefield Array-Low Frequency Demonstrator (MWA-LFD) of the redshifted 21 cm power spectrum are f…