An overview of CHIME, the Canadian hydrogen intensity mapping experiment
Abstract The Canadian Hydrogen Intensity Mapping Experiment (CHIME) is a drift scan
radio telescope operating across the 400–800 MHz band. CHIME is located at the Dominion …
radio telescope operating across the 400–800 MHz band. CHIME is located at the Dominion …
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 …
Observational probes of cosmic acceleration
DH Weinberg, MJ Mortonson, DJ Eisenstein, C Hirata… - Physics reports, 2013 - Elsevier
The accelerating expansion of the universe is the most surprising cosmological discovery in
many decades, implying that the universe is dominated by some form of “dark energy” with …
many decades, implying that the universe is dominated by some form of “dark energy” with …
64 constraints on reionization: the 21 cm power spectrum at z= 8.4
In this paper, we report new limits on 21 cm emission from cosmic reionization based on a
135 day observing campaign with a 64-element deployment of the Donald C. Backer …
135 day observing campaign with a 64-element deployment of the Donald C. Backer …
Measurement of 21 cm brightness fluctuations at z∼ 0.8 in cross-correlation
KW Masui, ER Switzer, N Banavar… - The Astrophysical …, 2013 - iopscience.iop.org
In this Letter, 21 cm intensity maps acquired at the Green Bank Telescope are cross-
correlated with large-scale structure traced by galaxies in the WiggleZ Dark Energy Survey …
correlated with large-scale structure traced by galaxies in the WiggleZ Dark Energy Survey …
Determination of z ∼ 0.8 neutral hydrogen fluctuations using the 21 cm intensity mapping autocorrelation
The large-scale distribution of neutral hydrogen in the Universe will be luminous through its
21 cm emission. Here, for the first time, we use the auto-power spectrum of 21 cm intensity …
21 cm emission. Here, for the first time, we use the auto-power spectrum of 21 cm intensity …
A simulation-calibrated limit on the H i power spectrum from the GMRT Epoch of Reionization experiment
Abstract The Giant Metrewave Radio Telescope Epoch of Reionization experiment is an
ongoing effort to measure the power spectrum from neutral hydrogen at high redshift. We …
ongoing effort to measure the power spectrum from neutral hydrogen at high redshift. We …
Low-amplitude clustering in low-redshift 21-cm intensity maps cross-correlated with 2dF galaxy densities
CJ Anderson, NJ Luciw, YC Li, CY Kuo… - Monthly Notices of …, 2018 - academic.oup.com
We report results from 21-cm intensity maps acquired from the Parkes radio telescope and
cross-correlated with galaxy maps from the 2dF galaxy survey. The data span the redshift …
cross-correlated with galaxy maps from the 2dF galaxy survey. The data span the redshift …
Epoch of reionization window. I. Mathematical formalism
The 21 cm line provides a powerful probe of astrophysics and cosmology at high redshifts,
but unlocking the potential of this probe requires the robust mitigation of foreground …
but unlocking the potential of this probe requires the robust mitigation of foreground …
Overcoming real-world obstacles in 21 cm power spectrum estimation: A method demonstration and results from early Murchison Widefield Array data
We present techniques for bridging the gap between idealized inverse covariance weighted
quadratic estimation of 21 cm power spectra and the real-world challenges presented …
quadratic estimation of 21 cm power spectra and the real-world challenges presented …