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The Engineering Development Array: A low frequency radio telescope utilising SKA precursor technology
Randall Wayth, Marcin Sokolowski, Tom Booler +21
We describe the design and performance of the Engineering Development Array (EDA), which is a low frequency radio telescope comprising 256 dual-polarisation dipole antennas working…
Revisiting Hybrid Interferometry with Low-Frequency Radio Astronomy Arrays
Adrian T. Sutinjo, Daniel Ung, Tim M. Colegate +3
Radio interferometry most commonly involves antennas or antenna arrays of identical design. The identical antenna assumption leads to a convenient and useful mathematical simplific…
Characterization of a Low-Frequency Radio Astronomy Prototype Array in Western Australia
A. T. Sutinjo, T. M. Colegate, R. B. Wayth +12
We report characterization results for an engineering prototype of a next-generation low-frequency radio astronomy array. This prototype, which we refer to as the Aperture Array Ve…
Antenna array characterization via radio interferometry observation of astronomical sources
T. M. Colegate, A. T. Sutinjo, P. J. Hall +12
We present an in-situ antenna characterization method and results for a "low-frequency" radio astronomy engineering prototype array, characterized over the 75-300 MHz frequency ran…
BIGHORNS - Broadband Instrument for Global HydrOgen ReioNisation Signal
M. Sokolowski, S. E. Tremblay, R. B. Wayth +12
The redshifted 21cm line of neutral hydrogen (HI), potentially observable at low radio frequencies (~50-200 MHz), should be a powerful probe of the physical conditions of the inter…
Understanding Instrumental Stokes Leakage in Murchison Widefield Array Polarimetry
Adrian Sutinjo, John O'Sullivan, Emil Lenc +4
This paper offers an electromagnetic, more specifically array theory, perspective on understanding strong instrumental polarization effects for planar low-frequency "aperture array…