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20192025
most citedFirst Results from HERA Phase I: Upper Limits on the Epoch of Reionization 21 cm Power Spectrum

200 citations · 1.1k across the 33 of their papers we have counts for

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Showing 2020Show all

5 papers · 1 filter

astro-ph.CO2020★ 23 cited

Detection of Cosmic Structures using the Bispectrum Phase. II. First Results from Application to Cosmic Reionization Using the Hydrogen Epoch of Reionization Array

Nithyanandan Thyagarajan, Chris L. Carilli, Bojan Nikolic +69

Characterizing the epoch of reionization (EoR) at via the redshifted 21 cm line of neutral Hydrogen (HI) is critical to modern astrophysics and cosmology, and thus a k…

astro-ph.IM2020★ 22 cited

Measuring HERA's primary beam in-situ: methodology and first results

Chuneeta D. Nunhokee, Aaron R. Parsons, Nicholas S. Kern +64

The central challenge in 21~cm cosmology is isolating the cosmological signal from bright foregrounds. Many separation techniques rely on the accurate knowledge of the sky and the…

astro-ph.CO2020★ 29 cited

Foreground modelling via Gaussian process regression: an application to HERA data

Abhik Ghosh, Florent Mertens, Gianni Bernardi +70

The key challenge in the observation of the redshifted 21-cm signal from cosmic reionization is its separation from the much brighter foreground emission. Such separation relies on…

astro-ph.IM2020★ 4 cited

Calibration Schemes with Scaling for Large-N Radio Interferometers Built on a Regular Grid

Deepthi B. Gorthi, Aaron R. Parsons, Joshua S. Dillon

Future generations of radio interferometers targeting the 21\,cm signal at cosmological distances with antennas could face a significant computational challenge in buil…

astro-ph.IM2020★ 57 cited

Redundant-Baseline Calibration of the Hydrogen Epoch of Reionization Array

Joshua S. Dillon, Max Lee, Zaki S. Ali +76

In 21 cm cosmology, precision calibration is key to the separation of the neutral hydrogen signal from very bright but spectrally-smooth astrophysical foregrounds. The Hydrogen Epo…