We present a protocluster search covering z∼ 3 to z∼ 5 based on the combination of the
Hyper SuprimeCam Subaru Strategic Programme and the CFHT Large Area U-band Deep …

Recent simulations and observations of massive galaxy cluster evolution predict that the
majority of stellar mass buildup happens within cluster members by z= 2, before cluster …

We conduct a systematic search for protocluster candidates at z≥ 6 in the Cosmic Evolution
Survey (COSMOS) field using the recently released COSMOS2020 source catalog. We …

We present a new catalog of 9318 Lyα emitter (LAE) candidates at z= 2.2, 3.3, 4.9, 5.7, 6.6,
and 7.0 that are photometrically selected by the SILVERRUSH program with a machine …

The current consensus on the formation and evolution of the brightest cluster galaxies is that
their stellar mass forms early (≳ 4) in separate galaxies that then eventually assemble the …

We report the rest-frame ultraviolet luminosity function of g-dropout galaxies in 177
protocluster candidates (PC UVLF) at z∼ 4 selected in the Hyper Suprime-Cam Subaru …

The process of galaxy cluster formation likely leaves an imprint on the properties of its
individual member galaxies. Understanding this process is essential for uncovering the …

We study brightest cluster galaxies (BCGs) in∼ 5000 galaxy clusters from the Hyper
Suprime-Cam (HSC) Subaru Strategic Program. The sample is selected over an area of 830 …

We perform a stacking analysis of Planck, AKARI, Infrared Astronomical Satellite, Wide-field
Infrared Survey Explorer, and Herschel images of the largest number of (candidate) …

Characterizing high-z quasar environments is key to understanding the coevolution of
quasars and the surrounding galaxies. To restrict their global picture, we statistically …