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A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). VI. Distant Filamentary Structures Pointed by High-z Radio Galaxies at z~4
Hisakazu Uchiyama, Takuji Yamashita, Jun Toshikawa +13
We present the environmental properties around high- radio galaxies (HzRGs) at , which have been poorly investigated because of their rarity. We use the largest samples…
A Search for H-Dropout Lyman Break Galaxies at z~12-16
Yuichi Harikane, Akio K. Inoue, Ken Mawatari +11
We present two bright galaxy candidates at z~12-13 identified in our H-dropout Lyman break selection with 2.3 deg2 near-infrared deep imaging data. These galaxy candidates, selecte…
EMPRESS. VI. Outflows Investigated in Low-Mass Galaxies with : Weak Feedback in Low-Mass Galaxies?
Yi Xu, Masami Ouchi, Michael Rauch +10
We study emission line profiles of 21 nearby low-mass () galaxies in deep medium-high resolution spectra taken with Magellan/MagE. These low-mass galaxies ar…
Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). XVI. 69 New Quasars at 5.8 < z < 7.0
Yoshiki Matsuoka, Kazushi Iwasawa, Masafusa Onoue +41
We present the spectroscopic discovery of 69 quasars at 5.8 < z < 7.0, drawn from the Hyper Suprime-Cam (HSC) Subaru Strategic Program (SSP) imaging survey data. This is the 16th p…
Stellar Initial Mass Function (IMF) Probed with Supernova Rates and Neutrino Background: Cosmic Average IMF Slope is Similar to the Salpeter IMF
Shohei Aoyama, Masami Ouchi, Yuichi Harikane
The stellar initial mass function (IMF) is expressed by with the slope , and known as the poorly-constrained but very important function in studies of star…
SILVERRUSH XI: Constraints on the Ly luminosity function and cosmic reionization at with Subaru/Hyper Suprime-Cam
Hinako Goto, Kazuhiro Shimasaku, Satoshi Yamanaka +6
The Ly luminosity function (LF) of Ly emitters (LAEs) has been used to constrain the neutral hydrogen fraction in the intergalactic medium (IGM) and thus the timeline of cosm…
Ionizing radiation from AGNs at z>3.3 with the Subaru Hyper Suprime-Cam Survey and the CFHT Large Area U-band Deep Survey (CLAUDS)
Ikuru Iwata, Marcin Sawicki, Akio K. Inoue +8
We use deep and wide imaging data from the CFHT Large Area U-band Deep Survey (CLAUDS) and the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) to constrain the ionizing radiat…
Third Data Release of the Hyper Suprime-Cam Subaru Strategic Program
Hiroaki Aihara, Yusra AlSayyad, Makoto Ando +64
The paper presents the third data release of Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP), a wide-field multi-band imaging survey with the Subaru 8.2m telescope. HSC-SSP ha…
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 ($\…
EMPRESS. IV. Extremely Metal-Poor Galaxies (EMPGs) Including Very Low-Mass Primordial Systems with M*=10^4--10^5 M_sun and 2--3% (O/H)_sun: High (Fe/O) Suggestive of Metal Enrichment by Hypernovae/Pair-Instability Supernovae
Yuki Isobe, Masami Ouchi, Akihiro Suzuki +22
We present Keck/LRIS follow-up spectroscopy for 13 photometric candidates of extremely metal poor galaxies (EMPGs) selected by a machine-learning technique applied to the deep (~26…
GOLDRUSH. IV. Luminosity Functions and Clustering Revealed with ~4,000,000 Galaxies at z~2-7: Galaxy-AGN Transition, Star Formation Efficiency, and Implication for Evolution at z>10
Yuichi Harikane, Yoshiaki Ono, Masami Ouchi +16
We present new measurements of rest-UV luminosity functions and angular correlation functions from 4,100,221 galaxies at z~2-7 identified in the Subaru/Hyper Suprime-Cam survey and…
Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). XIV. A Candidate Type-II Quasar at z=6.1292
Masafusa Onoue, Yoshiki Matsuoka, Nobunari Kashikawa +13
We present deep Keck/MOSFIRE near-infrared spectroscopy of a strong Lyman alpha emitting source at z=6.1292, HSC J142331.71-001809.1, which was discovered by the SHELLQS program fr…
Galaxy Morphologies Revealed with Subaru HSC and Super-Resolution Techniques I: Major Merger Fractions of L_UV~3-15 L_UV* Dropout Galaxies at z~4-7
Takatoshi Shibuya, Noriaki Miura, Kenji Iwadate +5
We perform a super-resolution analysis of the Subaru Hyper Suprime-Cam (HSC) images to estimate the major merger fractions of z~4-7 dropout galaxies at the bright end of galaxy UV…
First HETDEX Spectroscopic Determinations of Ly and UV Luminosity Functions at : Bridging a Gap Between Faint AGN and Bright Galaxies
Yechi Zhang, Masami Ouchi, Karl Gebhardt +21
We present Ly and ultraviolet-continuum (UV) luminosity functions (LFs) of galaxies and active galactic nuclei (AGN) at determined by the un-targetted optical spectr…
SILVERRUSH X: Machine Learning-Aided Selection of LAEs at , , , , , and from the HSC SSP and CHORUS Survey Data
Yoshiaki Ono, Ryohei Itoh, Takatoshi Shibuya +25
We present a new catalog of Ly emitter (LAE) candidates at , , , , , and that are photometrically selected by the SILVERRUSH program wi…
First Identification of a CMB Lensing Signal Produced by Million Galaxies at 4: Constraints on Matter Density Fluctuations at High Redshift
Hironao Miyatake, Yuichi Harikane, Masami Ouchi +6
We report the first detection of the dark matter distribution around Lyman break galaxies (LBGs) at high redshift through the Cosmic Microwave Background (CMB) lensing measurements…
Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs) XII. Extended [C II] Structure (Merger or Outflow) in a z = 6.72 Red Quasar
Takuma Izumi, Masafusa Onoue, Yoshiki Matsuoka +31
We present ALMA [C II] 158 m line and far-infrared (FIR) continuum emission observations toward HSC J120505.09000027.9 (J12050000) at with the beam size of $\si…