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King Ghidorah Supercluster: Mapping the light and dark matter in a new supercluster at z=0.55 using the Subaru Hyper Suprime-Cam
Rhythm Shimakawa, Nobuhiro Okabe, Masato Shirasaki +1
This paper reports our discovery of the most massive supercluster, termed the King Ghidorah Supercluster (KGSc), at in the Third Public Data Release of the Hyper Supr…
The Missing Satellite Problem Outside of the Local Group. II. Statistical Properties of Satellites of Milky Way-like Galaxies
Masashi Nashimoto, Masayuki Tanaka, Masashi Chiba +3
We present a new observation of satellite galaxies around seven Milky Way (MW)-like galaxies located outside of the Local Group (LG) using Subaru/Hyper Suprime-Cam imaging data to…
COSMOS2020: Ubiquitous AGN Activity of Massive Quiescent Galaxies at Revealed by X-ray and Radio Stacking
Kei Ito, Masayuki Tanaka, Takamitsu Miyaji +8
We characterize the average X-ray and radio properties of quiescent galaxies (QGs) with at . QGs are photometrically selected from the latest CO…
Passive spiral galaxies deeply captured by Subaru Hyper Suprime-Cam
Rhythm Shimakawa, Masayuki Tanaka, Connor Bottrell +4
This paper presents a thousand passive spiral galaxy samples at 0.01-0.3 based on a combined analysis of the Third Public Data Release of the Hyper Suprime-Cam Subaru Strategi…