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

110 citations · 375 across the 38 of their papers we have counts for

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Showing 2023Show all

5 papers · 1 filter

astro-ph.CO2023

On the Constraints on Superconducting Cosmic Strings from 21-cm Cosmology

T. Gessey-Jones, S. Pochinda, H. T. J. Bevins +5

Constraints on the potential properties of superconducting cosmic strings provide an indirect probe of physics beyond the standard model at energies inaccessible to terrestrial par…

astro-ph.CO2023

Constraining the properties of Population III galaxies with multi-wavelength observations

S. Pochinda, T. Gessey-Jones, H. T. J. Bevins +7

The early Universe, spanning 400,000 to 400 million years after the Big Bang (), has been left largely unexplored as the light from luminous objects is too faint t…

astro-ph.IM2023★ 10 cited

Receiver design for the REACH global 21-cm signal experiment

Ian L. V. Roque, Nima Razavi-Ghods, Steven H. Carey +35

We detail the the REACH radiometric system designed to enable measurements of the 21-cm neutral hydrogen line. Included is the radiometer architecture and end-to-end system simulat…

stat.ML2023★ 4 cited

Piecewise Normalizing Flows

Harry Bevins, Will Handley, Thomas Gessey-Jones

Normalizing flows are an established approach for modelling complex probability densities through invertible transformations from a base distribution. However, the accuracy with wh…

astro-ph.CO2023★ 4 cited

Joint analysis constraints on the physics of the first galaxies with low frequency radio astronomy data

Harry T. J. Bevins, Stefan Heimersheim, Irene Abril-Cabezas +5

The first billion years of cosmic history remains largely unobserved. We demonstrate, using a novel machine learning technique, how combining upper limits on the spatial fluctuatio…