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The Murchison Widefield Array Phase III upgrade: Sensitivity Doubled, Number of Baselines Quadrupled, Flexibility Enhanced, and EoR Observations Optimised
S. J. Tingay, M. Johnston-Hollitt, R. B. Wayth +32
We describe the latest iteration of upgrades (designated Phase III) to the Murchison Widefield Array (MWA), in the fourth paper in a series that covers the evolution of the telesco…
A signal dedispersion algorithm for imaging-based transient searches
Cristian Di Pietrantonio, Marcin Sokolowski, Christopher Harris +2
Dedispersion is the computational process of correcting for the frequency-dependent time delay affecting a radio signal that propagates through the interstellar and intergalactic m…
High-Time Resolution GPU Imager for FRB searches at low radio frequencies
M. Sokolowski, G. Aniruddha, C. Di Pietrantonio +5
Fast Radio Bursts (FRBs) are millisecond dispersed radio pulses of predominately extra-galactic origin. Although originally discovered at GHz frequencies, most FRBs have been detec…
Calibration of an SKA-Low Prototype Station Using Holographic Techniques
Jishnu N. Thekkeppattu, Randall B. Wayth, Marcin Sokolowski
Performance of digitally beamformed phased arrays relies on accurate calibration of the array by obtaining gains of each antenna in the array. The stations of the Square Kilometer…
Detection of intended and unintended emissions from Starlink satellites in the SKA-Low frequency range, at the SKA-Low site, with an SKA-Low station analog
Dylan Grigg, Steven Tingay, Marcin Sokolowski +3
Intended and unintended radio emissions from satellites can interfere with sensitive radio telescopes in the frequency ranges of key experiments in astrophysics and cosmology. We d…
MWAX: A New Correlator for the Murchison Widefield Array
I. S. Morrison, B. Crosse, G. Sleap +7
We describe the design, validation, and commissioning of a new correlator termed "MWAX" for the Murchison Widefield Array (MWA) low-frequency radio telescope. MWAX replaces an earl…