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 …

Ten years ago, the discovery that the expansion of the universe is accelerating put in place
the last major building block of the present cosmological model, in which the universe is …

We present a catalog of 4195 optically confirmed Sunyaev–Zel'dovich (SZ) selected galaxy
clusters detected with signal-to-noise ratio> 4 in 13,211 deg 2 of sky surveyed by the …

Simpson-Visser (SV) spacetimes are the simplest globally regular modifications of the
Schwarzschild, Reissner-Nordsröm and other black hole solutions of general relativity. They …

A simple cosmological model with only six parameters (matter density, Ω mh 2, baryon
density, Ω bh 2, Hubble constant, H 0, amplitude of fluctuations, σ 8, optical depth, τ, and a …

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We employ robust weak gravitational lensing measurements to improve cosmological
constraints from measurements of the galaxy cluster mass function and its evolution, using X …

We present a new semi-analytic model that self-consistently traces the growth of
supermassive black holes (BH) and their host galaxies within the context of the Lambda cold …

We have discovered 21 new Type Ia supernovae (SNe Ia) with the Hubble Space Telescope
(HST) and have used them to trace the history of cosmic expansion over the last 10 billion yr …

High resolution X-ray spectroscopy of the hot gas in galaxy clusters has shown that the gas
is not cooling to low temperatures at the predicted rates of hundreds to thousands of solar …