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PAPER-64 CONSTRAINTS ON REIONIZATION: THE 21 CM POWER SPECTRUM AT Z = 8:4
© 2015. The American Astronomical Society. All rights reserved. In this paper, we report new limits on 21 cm emission from cosmic reionization based on a 135 day observing campaign with a 64-elementExpand
Precision calibration of radio interferometers using redundant baselines
TLDR
The errors and biases in existing redundant calibration schemes are explored through simulations, and it is shown how statistical biases can be eliminated and slight deviations from perfect redundancy and coplanarity can be taken into account. Expand
WHAT NEXT-GENERATION 21 cm POWER SPECTRUM MEASUREMENTS CAN TEACH US ABOUT THE EPOCH OF REIONIZATION
A number of experiments are currently working toward a measurement of the 21 cm signal from the epoch of reionization (EoR). Whether or not these experiments deliver a detection of cosmologicalExpand
PAPER-64 CONSTRAINTS ON REIONIZATION II: THE TEMPERATURE OF THE Z = 8:4 INTERGALACTIC MEDIUM
© 2015. The American Astronomical Society. All rights reserved. We present constraints on both the kinetic temperature of the intergalactic medium (IGM) at z = 8.4, and on models for heating the IGMExpand
An Improved Model of Diffuse Galactic Radio Emission from 10 MHz to 5 THz
We present an improved Global Sky Model (GSM) of diffuse galactic radio emission from 10 MHz to 5 THz, whose uses include foreground modeling for CMB and 21 cm cosmology. Our model improves on pastExpand
A method for 21 cm power spectrum estimation in the presence of foregrounds
The technique of 21 cm tomography promises to be a powerful tool for estimating cosmological parameters, constraining the epoch of reionization, and probing the so-called dark ages. However,Expand
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 universally byExpand
The impact of modelling errors on interferometer calibration for 21 cm power spectra
We study the impact of sky-based calibration errors from source mismodeling on 21\,cm power spectrum measurements with an interferometer and propose a method for suppressing their effects. WhileExpand
MITEoR: a scalable interferometer for precision 21 cm cosmology
We report on the MIT Epoch of Reionization (MITEoR) experiment, a pathfinder low-frequency radio interferometer whose goal is to test technologies that improve the calibration precision and reduceExpand
An improved method for 21‐cm foreground removal
21-cm tomography is expected to be difficult in part because of serious foreground contamination. Previous studies have found that line-of-sight approaches are capable of cleaning foregrounds to anExpand
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