A number of challenges to the standard Λ CDM model have been emerging during the past
few years as the accuracy of cosmological observations improves. In this review we discuss …

The discovery of the accelerating universe in the late 1990s was a watershed moment in
modern cosmology, as it indicated the presence of a fundamentally new, dominant …

The dawn of the twenty-first century came with very positive prospects for gravity, cosmology,
and astrophysics. Technological progress made it possible for cosmology to enter to its …

We perform a joint analysis of the counts and weak lensing signal of redMaPPer clusters
selected from the Dark Energy Survey (DES) Year 1 dataset. Our analysis uses the same …

We present the all-sky Planck catalogue of Sunyaev-Zeldovich (SZ) sources detected from
the 29 month full-mission data. The catalogue (PSZ2) is the largest SZ-selected sample of …

We derive constraints on cosmological parameters and tests of dark energy models from the
combination of baryon acoustic oscillation (BAO) measurements with cosmic microwave …

We describe redMaPPer, a new red sequence cluster finder specifically designed to make
optimal use of ongoing and near-future large photometric surveys. The algorithm has …

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 …

We present constraints on cosmological parameters using number counts as a function of
redshift for a sub-sample of 189 galaxy clusters from the Planck SZ (PSZ) catalogue. The …

Formation of galaxy clusters corresponds to the collapse of the largest gravitationally bound
overdensities in the initial density field and is accompanied by the most energetic …