activity
20202026
most citedThe REACH radiometer for detecting the 21-cm hydrogen signal from redshift 7.5 to 28

110 citations · 402 across the 35 of their papers we have counts for

collaborators

35 papers

astro-ph.CO2026

Quantifying Sky Map Resolution Requirements for Beam Chromaticity Correction in Sky-Averaged 21 cm Experiments

Aleksandra Dragović, Dominic Anstey, Harry T. J. Bevins +1

The 21 cm hyperfine transition of neutral hydrogen provides one of the few direct probes of the early cosmic history. High-redshift detections of this signal could shine light on t…

astro-ph.CO2026

Towards end-to-end Bayesian forward models in global 21-cm cosmology: surrogate modelling and marginalisation of beam uncertainty

Jacob L. Tutt, Dominic J. Anstey, John Cumner +3

Robust statistical inference in global 21-cm cosmology requires end-to-end uncertainty quantification that jointly handles the highly degenerate cosmological signal, foreground emi…

astro-ph.CO2026

Impact of numerical stability in Bayesian noise wave calibration on global 21-cm experiments

Saswata Dasgupta, Adarsh Kumar Dash, Dominic Anstey +3

Detecting the global 21-cm signal from the Cosmic Dawn and Epoch of Reionization requires calibration accuracy far below the level of astrophysical foregrounds. REACH models its re…

astro-ph.CO2026

Direct Primary Beam Correction: Untangling Mutual Coupling in 21-cm Cosmological Experiments with the SKA-Low Radio Telescope

Oscar S. D. O'Hara, Quentin Gueuning, Eloy de Lera Acedo +7

Mutual coupling between antennas has emerged as the dominant direction-dependent corruption in dense aperture arrays, imprinting pronounced sub-MHz spatial and spectral structure t…

astro-ph.CO2026

Synchrotron and free-free mapping with simulated REACH observations between 50-170 MHz

Daniel Robins, Dominic Anstey, Harry Bevins +2

Global 21cm experiments aim to detect the hydrogen 21cm signal by separating it from foreground emission that can be orders of magnitude brighter than the signal. REACH (the Radio…

astro-ph.IM2026

Observations of the Cosmic Dawn and Epoch of Reionization with the SKAO: Observational Lessons Learned from Precursors and Pathfinder Instruments

Eloy de Lera Acedo, James Aguirre, Dominic Anstey +34

This chapter summarizes the observational lessons learned after two decades of observations of the Cosmic Dawn (CD) and Epoch of Reionization (EoR) with SKAO pathfinders and precur…