Data analysis for precision 21 cm cosmology
A Liu, JR Shaw - Publications of the Astronomical Society of the …, 2020 - iopscience.iop.org
The redshifted 21 cm line is an emerging tool in cosmology, in principle permitting three-
dimensional surveys of our universe that reach unprecedentedly large volumes, previously …
dimensional surveys of our universe that reach unprecedentedly large volumes, previously …
Improved constraints on the 21 cm EoR power spectrum and the X-ray heating of the IGM with HERA phase I observations
T Adams, JE Aguirre, P Alexander, ZS Ali… - The Astrophysical …, 2023 - iopscience.iop.org
We report the most sensitive upper limits to date on the 21 cm epoch of reionization power
spectrum using 94 nights of observing with Phase I of the Hydrogen Epoch of Reionization …
spectrum using 94 nights of observing with Phase I of the Hydrogen Epoch of Reionization …
First results from hera phase i: Upper limits on the epoch of reionization 21 cm power spectrum
Z Abdurashidova, JE Aguirre, P Alexander… - The Astrophysical …, 2022 - iopscience.iop.org
We report upper limits on the Epoch of Reionization 21 cm power spectrum at redshifts 7.9
and 10.4 with 18 nights of data (∼ 36 hr of integration) from Phase I of the Hydrogen Epoch …
and 10.4 with 18 nights of data (∼ 36 hr of integration) from Phase I of the Hydrogen Epoch …
Hydrogen epoch of reionization array (HERA)
Abstract The Hydrogen Epoch of Reionization Array (HERA) is a staged experiment to
measure 21 cm emission from the primordial intergalactic medium (IGM) throughout cosmic …
measure 21 cm emission from the primordial intergalactic medium (IGM) throughout cosmic …
Mitigating internal instrument coupling for 21 cm cosmology. II. A method demonstration with the Hydrogen Epoch of Reionization Array
We present a study of internal reflection and cross-coupling systematics in Phase I of the
Hydrogen Epoch of Reionization Array (HERA). In a companion paper, we outlined the …
Hydrogen Epoch of Reionization Array (HERA). In a companion paper, we outlined the …
The impact of modelling errors on interferometer calibration for 21 cm power spectra
We study the impact of sky-based calibration errors from source mismodelling on 21 cm
power spectrum measurements with an interferometer and propose a method for …
power spectrum measurements with an interferometer and propose a method for …
Absolute calibration strategies for the hydrogen epoch of reionization array and their impact on the 21 cm power spectrum
We discuss absolute calibration strategies for Phase I of the Hydrogen Epoch of
Reionization Array (HERA), which aims to measure the cosmological 21 cm signal from the …
Reionization Array (HERA), which aims to measure the cosmological 21 cm signal from the …
Redundant-baseline calibration of the hydrogen epoch of reionization array
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 …
signal from very bright but spectrally smooth astrophysical foregrounds. The Hydrogen …
Inflation and early dark energy with a stage II hydrogen intensity mapping experiment
This white paper envisions a revolutionary post-DESI, post-LSST dark energy program
based on intensity mapping of the redshifted 21cm emission line from neutral hydrogen at …
based on intensity mapping of the redshifted 21cm emission line from neutral hydrogen at …
Understanding the HERA Phase I receiver system with simulations and its impact on the detectability of the EoR delay power spectrum
N Fagnoni, E de Lera Acedo, DR DeBoer… - Monthly Notices of …, 2021 - academic.oup.com
The detection of the Epoch of Reionization (EoR) delay power spectrum using a 'foreground
avoidance method'highly depends on the instrument chromaticity. The systematic effects …
avoidance method'highly depends on the instrument chromaticity. The systematic effects …