activity
20202026
most citedA 21-cm power spectrum at 48 MHz, using the Owens Valley Long Wavelength Array

49 citations · 76 across the 8 of their papers we have counts for

collaborators

8 papers

astro-ph.CO2026

Probing the large-scale structure with 21cm-galaxy cross-bispectrum: Estimates from simulations and forecasts for upcoming cosmological surveys

Leon Noble, Suman Majumdar, Matteo Viel +7

The redshifted 21cm signal from the post-reionization epoch is highly non-Gaussian; thus, higher-order statistics, such as the bispectrum, are required to extract this non-Gaussian…

astro-ph.IM2026

Optimisation of calibration sources for global 21-cm experiments: the REACH case

Adarsh Kumar Dash, Dominic Anstey, Harry T. J. Bevins +41

The spin-flip 21-cm signal from the Cosmic Dawn and the Epoch of Reionization is an essential probe of the conditions that led to the formation of the first luminous objects in the…

astro-ph.GA2026

Painting a full radio sky -- Empirical mock catalogues with multiple source populations for future radio surveys

Tommaso Ronconi, Anna Bonaldi, Marta Spinelli +7

Upcoming radio surveys will probe the sky with unprecedented depth and sky coverage, enabling a broad range of cosmological and astrophysical applications, as well as powerful syne…

astro-ph.IM2026

Circuit Modeling for In Situ 21 cm Radiometer Calibration

Gary Vincent Charles Allen, Saurabh Pegwal, Dirk de Villiers +42

Recent experiments in cosmology, particularly those aimed at detecting the faint, redshifted, global 21 cm hydrogen line (depth < ~200 mK, z > 7.5), have imposed stringent new requ…

astro-ph.CO2026

Simulations of the 21cm emission line for upcoming large-scale HI galaxy surveys

Joël Mayor, Marta Spinelli, Gabriella De Lucia +5

Upcoming galaxy surveys with the SKA Observatory will detect neutral hydrogen (HI) across unprecedented volumes, and their scientific return will crucially depend on predictive mod…

astro-ph.CO2024

Bayesian data analysis for sky-averaged 21-cm experiments with contamination from linearly polarised foreground

Emma Shen, Dominic Anstey, Marta Spinelli +2

The precise measurement of the sky-averaged HI absorption signal between 50 and 200 MHz is the primary goal of global 21-cm cosmology. This measurement has the potential to unravel…

astro-ph.CO2021★ 49 cited

A 21-cm power spectrum at 48 MHz, using the Owens Valley Long Wavelength Array

Hugh Garsden, Lincoln Greenhill, Gianni Bernardi +6

The Large-aperture Experiment to detect the Dark Age (LEDA) was designed to measure the 21-cm signal from neutral hydrogen at Cosmic Dawn, 15-30. Using observations mad…

astro-ph.IM2020★ 27 cited

Spectral index of the Galactic foreground emission in the 50-87 MHz range

Marta Spinelli, Gianni Bernardi, Hugh Garsden +4

Total-power radiometry with individual meter-wave antennas is a potentially effective way to study the Cosmic Dawn () through measurement of sky brightness arising from th…