Abstract The standard Λ Cold Dark Matter (ΛCDM) cosmological model provides a good
description of a wide range of astrophysical and cosmological data. However, there are a …

In a growing number of galaxy clusters diffuse extended radio sources have been found.
These sources are not directly associated with individual cluster galaxies. The radio …

The cosmological principle (CP)—the notion that the Universe is spatially isotropic and
homogeneous on large scales—underlies a century of progress in cosmology. It is …

We study the large-scale anisotropy of the universe by measuring the dipole in the angular
distribution of a flux-limited, all-sky sample of 1.36 million quasars observed by the Wide …

The Low Frequency Array (LOFAR) is an ideal instrument to conduct deep extragalactic
surveys. It has a large field of view and is sensitive to large-scale and compact emission. It …

Source classifications, stellar masses, and star-formation rates are presented for≈ 80 000
radio sources from the first data release of the Low Frequency Array Two-metre Sky Survey …

The LOFAR Two-metre Sky Survey (LoTSS) is a deep 120–168 MHz imaging survey that will
eventually cover the entire northern sky. Each of the 3170 pointings will be observed for 8 h …

We present the first full release of a survey of the 150 MHz radio sky, observed with the Giant
Metrewave Radio Telescope (GMRT) between April 2010 and March 2012 as part of the …

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 …

We summarize what large surveys of the contemporary Universe have taught us about the
physics and phenomenology of the processes that link the formation and evolution of …