activity
20242026
collaborators

5 papers

astro-ph.IM2026

Prime Focus Spectrograph on the Subaru Telescope: Overview of Science Operations

Masayuki Tanaka, Akira Arai, Wanqiu He +30

The paper presents the science operation framework for Prime Focus Spectrograph (PFS or 'Onohi'ula in its Hawaiian name) installed at the 8.2m Subaru Telescope on the summit of Mau…

astro-ph.GA2025

Environment of SDSS quasars at explored by Subaru HSC

Kohei Shibata, Tohru Nagao, Hisakazu Uchiyama +5

The relationship between quasars and their galaxy environment is important for understanding the evolution of galaxies and supermassive black holes, but it is not fully understood.…

astro-ph.GA2024

Cluster candidates with massive quiescent galaxies at

Tomokazu Kiyota, Makoto Ando, Masayuki Tanaka +7

Galaxy clusters are crucial to understanding role of the environment in galaxy evolution. However, due to their rarity, only a limited number of clusters have been identified at $z…

astro-ph.GA2024

Galaxy Morphologies Revealed with Subaru HSC and Super-Resolution Techniques II: Environmental Dependence of Galaxy Mergers at z~2-5

Takatoshi Shibuya, Yohito Ito, Kenta Asai +8

We super-resolve the seeing-limited Subaru Hyper Suprime-Cam (HSC) images for 32,187 galaxies at z~2-5 in three techniques, namely, the classical Richardson-Lucy (RL) point spread…

astro-ph.CO2024

A Systematic Search of Distant Superclusters with the Subaru Hyper Suprime-Cam Survey

Tsung-Chi Chen, Yen-Ting Lin, Hsi-Yu Schive +13

Superclusters, encompassing environments across a wide range of overdensities, can be regarded as unique laboratories for studying galaxy evolution. Although numerous supercluster…