Imaging the Universe during the first hundreds of millions of years remains one of the
exciting challenges facing modern cosmology. Observations of the redshifted 21 cm line of …

The Universe's dark ages end with the formation of the first generation of galaxies. These
objects start emitting ultraviolet radiation that carves out ionized regions around them. After a …

The Square Kilometre Array (SKA) is a planned large radio interferometer designed to
operate over a wide range of frequencies, and with an order of magnitude greater sensitivity …

The dynamics of our Universe is strongly influenced by pervasive—albeit elusive—dark
matter, with a total mass about five times the mass of all the baryons,. Despite this, its origin …

Abstract Recently, the Hydrogen Epoch of Reionization Array (HERA) has produced the
experiment's first upper limits on the power spectrum of 21 cm fluctuations at z∼ 8 and 10 …

We present the first limits on the Epoch of Reionization 21 cm H i power spectra, in the
redshift range z= 7.9–10.6, using the Low-Frequency Array (LOFAR) High-Band Antenna …

Dark Energy - IOPscience This site uses cookies. By continuing to use this site you agree to
our use of cookies. To find out more, see our Privacy and Cookies policy. Close this notification …

We present a framework for forecasting cosmological constraints from future neutral
hydrogen intensity map** experiments at low to intermediate redshifts. In the process, we …

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 …

Abstract The Square Kilometre Array (SKA) will have a low frequency component (SKA-low)
which has as one of its main science goals the study of the redshifted 21 cm line from the …