Galaxy formation is at the heart of our understanding of cosmic evolution. Although there is a
consensus that galaxies emerged from the expanding matter background by gravitational …

Measurement of the spatial distribution of neutral hydrogen via the redshifted 21-cm line
promises to revolutionize our knowledge of the epoch of reionization and the first galaxies …

We introduce the Astrid simulation, a large-scale cosmological hydrodynamic simulation in a
box with 2× 55003 particles. Astrid contains a large number of high redshift galaxies, which …

The high-redshift intergalactic medium (IGM) and the primeval galaxy population are rapidly
becoming the new frontier of extragalactic astronomy. We investigate the IGM properties and …

We present UV luminosity functions of dropout galaxies at~– z 6 10 with the complete
Hubble Frontier Fields data. We obtain a catalog of∼ 450 dropout-galaxy candidates (350 …

Thomson optical depth τ measurements from Planck provide new insights into the
reionization of the universe. In pursuit of model-independent constraints on the properties of …

Understanding cosmic reionization requires the identification and characterization of early
sources of hydrogen-ionizing photons. The 2012 Hubble Ultra Deep Field (UDF12) …

We present the Lyα luminosity function (LF), clustering measurements, and Lyα line profiles
based on the largest sample to date of 207 Lyα emitters (LAEs) at z= 6.6 on the 1 deg 2 sky …

This paper focuses on cosmological constraints derived from analysis of WMAP data alone.
A simple ΛCDM cosmological model fits the five-year WMAP temperature and polarization …

We present the first results of a new Keck spectroscopic survey of UV faint Lyman break
galaxies in the redshift range 3< z< 7. Combined with earlier Keck and published European …