Abstract The Canadian Hydrogen Intensity Map** Experiment (CHIME) is a drift scan
radio telescope operating across the 400–800 MHz band. CHIME is located at the Dominion …

Low-frequency radio astronomy is limited by severe ionospheric distortions below 50MHz
and complete reflection of radio waves below 10–30MHz. Shielding of man-made …

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 …

An image from the Karl G. Jansky Very Large Array of the Galaxy Hercules A (also known as
3C348) showing powerful synchrotron jets emerging from its core, the site of a supermassive …

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 …

We are develo** the Precision Array for Probing the Epoch of Re-ionization (PAPER) to
detect 21 cm emission from the early universe, when the first stars and galaxies were …

The MeerKAT is a precursor for the ldquosmall dish plus single-pixel wide-band feedrdquo
scenario for the Square Kilometre Array (SKA). The current goal specification is for an array …

The Collaboration for Astronomy Signal Processing and Electronics Research (CASPER)
has been working for a decade to reduce the time and cost of designing, building and …

One mark of interpersonal relationships is a tendency to blame. But what precise
evaluations and responses constitute blame? Is it most centrally a judgment, or is it an …

This work describes a new instrument optimized for a detection of the neutral hydrogen 21
cm power spectrum between redshifts of 0.5 and 1.5: the Baryon Acoustic Oscillation …