Hydrogen Lyman-α (Lyα) emission has been one of the major observational probes for the
high-redshift Universe since the first discoveries of high-z Lyα-emitting galaxies in the late …

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 …

We study the ionizing photon production efficiency at the end of the Epoch of Reionization
(z∼ 5.4− 6.6) for a sample of 30 Ly α emitters. This is a crucial quantity to infer the ionizing …

The study of galaxy protoclusters is beginning to fill in unknown details of the important
phase of the assembly of clusters and cluster galaxies. This review describes the current …

We present the SILVERRUSH program strategy and clustering properties investigated
with∼ 2000 Lyα emitters (LAEs) at z= 5.7 and 6.6 found in the early data of the Hyper …

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 …

ABSTRACT A growing number of galaxy clusters at z= 1–2 is being discovered as part of
deep optical, IR, X-ray, and Sunyaev–Zel'dovich effect surveys. For a complete picture of …

We present luminosity functions (LFs) and various properties of Lyα emitters (LAEs) at z=
3.1, 3.7, and 5.7, in a 1 deg 2 sky of the Subaru/XMM–Newton Deep Survey (SXDS) Field …

We review the properties and nature of luminous high-redshift radio galaxies (HzRGs, z> 2)
and the environments in which they are located. HzRGs have several distinct constituents …

We present the results of a large program conducted with the Very Large Telescope and
augmented by observations with the Keck telescope to search for forming clusters of …