126 citations · 292 across the 14 of their papers we have counts for
14 papers
Constraining the nature of active galactic nuclei through circumgalactic Lya emission at z=2-3
Shiwu Zhang, Zheng Cai, Fabrizio Arrigoni Battaia +8
We present a comprehensive analysis of circumgalactic Lya nebulae around 59 unobscured and 26 obscured quasars at z=2-3, observed with the Keck Cosmic Web Imager (KCWI), to constra…
MAMMOTH-Subaru. II. Diverse Populations of Circumgalactic Ly Nebulae at Cosmic Noon
Mingyu Li, Haibin Zhang, Zheng Cai +23
Circumgalactic Lyman-alpha (Ly) nebulae are gaseous halos around galaxies exhibiting luminous extended Ly emission. This work investigates Ly nebulae from deep imaging of…
Cosmic Himalayas: The Highest Quasar Density Peak Identified in a 10,000 deg Sky with Spatial Discrepancies between Galaxies, Quasars, and IGM HI
Yongming Liang, Masami Ouchi, Dongsheng Sun +27
We report the identification of a quasar overdensity in the BOSSJ0210 field, dubbed Cosmic Himalayas, consisting of 11 quasars at , the densest overdensity of quasars…
Unveiling Luminous Ly Emitters at through JWST/NIRCam Imaging in the COSMOS Field
Yuanhang Ning, Zheng Cai, Xiaojing Lin +7
We study a sample of 14 spectroscopically confirmed Ly Emitters (LAEs) in the late era of reionization (at redshift ) based on the JWST/NIRCam imaging dataset. These…
MAMMOTH-Subaru V. Effects of Cosmic Variance on Ly Luminosity Functions at
Ke Ma, Haibin Zhang, Zheng Cai +8
Cosmic variance introduces significant uncertainties into galaxy number density properties when surveying the high-z Universe with a small volume, such uncertainties produce the fi…
MAMMOTH-Subaru III. Ly Halo Extended to kpc Identified by Stacking Ly Emitters at
Haibin Zhang, Zheng Cai, Yongming Liang +8
In this paper, we present a Ly halo extended to kpc identified by stacking Ly emitters at . We carry out imaging observations and data reduct…
MAMMOTH-Subaru IV. Large Scale Structure and Clustering Analysis of Ly Emitters and Ly Blobs at
Haibin Zhang, Zheng Cai, Mingyu Li +10
We report the large scale structure and clustering analysis of Ly emitters (LAEs) and Ly blobs (LABs) at . Using 3,341 LAEs, 117 LABs, and 58 bright (Ly luminos…
SILVERRUSH. XI. Intensity Mapping for Lya Emission Extending over comoving kpc around LAEs with Subaru HSC-SSP and CHORUS Data
Shotaro Kikuchihara, Yuichi Harikane, Masami Ouchi +14
We conduct intensity mapping to probe for extended diffuse Ly emission around Ly emitters (LAEs) at , exploiting very deep ( mag at ) and large-area ($\…
CHORUS. I. Cosmic HydrOgen Reionization Unveiled with Subaru: Overview
Akio K. Inoue, Satoshi Yamanaka, Masami Ouchi +28
To determine the dominant sources for cosmic reionization, the evolution history of the global ionizing fraction, and the topology of the ionized regions, we have conducted a deep…
EMPRESS. III. Morphology, Stellar Population, and Dynamics of Extremely Metal Poor Galaxies (EMPGs): Are EMPGs Local Analogs of High- Young Galaxies?
Yuki Isobe, Masami Ouchi, Takashi Kojima +16
We present the morphology and stellar population of 27 extremely metal poor galaxies (EMPGs) at with metallicities of 0.01--0.1 Z. We conduct multi-component sur…
3D Distribution Map of HI Gas and Galaxies Around an Enormous Ly Nebula and Three QSOs at Revealed by the HI Tomographic Mapping Technique
Shiro Mukae, Masami Ouchi, Zheng Cai +21
We present an IGM HI tomography map in a survey volume of (cMpc) centered at MAMMOTH-1 nebula and three neighbouring…
CHORUS. III. Photometric and Spectroscopic Properties of Ly Blobs at
Haibin Zhang, Masami Ouchi, Ryohei Itoh +20
We report the Subaru Hyper Suprime-Cam (HSC) discovery of two Ly blobs (LABs), dubbed z70-1 and z49-1 at and respectively, that are Ly emitters with a bri…
CHORUS II. Subaru/HSC Determination of the Ly Luminosity Function at : Constraints on Cosmic Reionization Model Parameter
Ryohei Itoh, Masami Ouchi, Haibin Zhang +16
We present the Ly luminosity function (LF) derived from 34 Ly emitters (LAEs) at on the sky of deg, the largest sample compared to those in the literature o…
SILVERRUSH. V. Census of Lya, [OIII]5007, Ha, and [CII]158um Line Emission with ~1000 LAEs at z=4.9-7.0 Revealed with Subaru/HSC
Yuichi Harikane, Masami Ouchi, Takatoshi Shibuya +23
We investigate Lya, [OIII]5007, Ha, and [CII]158um emission from 1124 galaxies at z=4.9-7.0. Our sample is composed of 1092 Lya emitters (LAEs) at z=4.9, 5.7, 6.6, and 7.0 identifi…