activity
20122026
most cited"Big Three Dragons": a z = 7.15 Lyman BreakGalaxy Detected in [OIII] 88 m, [CII] 158 m, and Dust Continuum with ALMA

242 citations · 4k across the 126 of their papers we have counts for

collaborators

125 papers

astro-ph.GA2026

SHELLQs. Black Hole Mass and Eddington Ratio Distributions of Intermediate-Luminosity Quasars at 6<z<7

Masafusa Onoue, John D. Silverman, Yoshiki Matsuoka +31

We present near-infrared spectroscopy of 21 quasars at 6.07 < z < 6.90 obtained with JWST/NIRSpec and Subaru/MOIRCS. These targets have absolute ultraviolet magnitudes of -25 < M_1…

astro-ph.GA2026

ADF22-WEB: Massive galaxy formation shaped by cosmic web filaments in the z = 3.1 proto-cluster core

Hideki Umehata, Ian Smail, Charles C. Steidel +7

We present a census of dust, molecular gas, and galaxy structure in 18 dusty star-forming galaxies (DSFGs) at embedded in Ly-traced cosmic web filaments in the core of…

astro-ph.GA2026

SERENADE III: Insight into the Origin of the High Dust Temperature and High [O III]/[C II] Ratio at

Ikki Mitsuhashi, Yuichi Harikane, Hiddo S. B. Algera +10

We present an analysis of ALMA high-frequency observations of nine bright Lyman-break galaxies at . Our sample consists of five galaxies at newly obs…

astro-ph.GA2026

RIOJA. Environmental Effects on Stellar Populations and Ionized Gas in a Protocluster at

Wataru Osone, Takuya Hashimoto, Javier Álvarez-Márquez +23

Protoclusters in the epoch of reionization provide key laboratories for investigating how environment shapes early galaxy formation and evolution, and may also have contributed to…

astro-ph.IM2026

FINER: development of the wideband millimeter-wave receiver system and preparations for first light on the Large Millimeter Telescope

Akio Taniguchi, Yoichi Tamura, Takeshi Sakai +38

The recent discovery of an excess of luminous galaxies in the early Universe necessitates sensitive and wideband millimeter spectroscopy to understand their rapid growth. To addres…

astro-ph.GA2026

A massive barred spiral galaxy at z = 5.102 discovered by JWST

Xiaohan Wang, Fengwu Sun, Yoshihisa Asada +21

We report M1149-BSG-z5, a barred spiral galaxy at , identified in the parallel field of MACS J1149+2223 with JWST and HST. M1149-BSG-z5 is the highest redshift barred ga…

astro-ph.GA2026

Upper limit on HF(1-0) absorption in a dusty star-forming galaxy at : Constraints on early fluorine enrichment

Akiyoshi Tsujita, Chiaki Kobayashi, Yuki Yoshimura +10

Wolf-Rayet (WR) stars have recently attracted attention as possible drivers of early chemical enrichment, including the production of fluorine, whose nucleosynthetic origin remains…

astro-ph.GA2026

Deep Submillimeter and Radio Observations in the SSA22 Field. III. Multiwavelength Identifications and Properties of the 850 m-selected Submillimeter Galaxies

Xin Zeng, Yiping Ao, Zongfei Lyu +4

We present a multiwavelength analysis of 850 m-selected SMGs (deblended S 1mJy) in the SSA22 field, where our deepest JCMT/SCUBA-2 observations reach a sensit…

astro-ph.GA2026

Deep Submillimeter and Radio Observations in the SSA22 Field. IV. Spectral Energy Distributions, Star Formation Histories, and the Infrared-Radio Correlation of the 850 m-selected SMGs

Xin Zeng, Yiping Ao, Ken Mawatari +1

We analyze the spectral energy distributions (SEDs), star formation histories (SFHs), and infrared-radio correlation (IRRC) of 221 850 m-selected submillimeter galaxies (SMGs) i…

astro-ph.GA2025

ALMA Lensing Cluster Survey: Molecular Gas Properties of Line-Emitting Galaxies from a Blind Survey

Kanako Narita, Bunyo Hatsukade, Seiji Fujimoto +16

We present results of a blind search for line-emitting galaxies using ALMA Lensing Cluster Survey data. We detected seven line emitters, one of which is [C\,{\sc ii}] at $z = 6.071…

astro-ph.GA2025★ 14 cited

Large gas inflow driven by a matured galactic bar in the early Universe

Shuo Huang, Ryohei Kawabe, Hideki Umehata +3

Bar structures are present in about half of local disk galaxies and play pivotal roles in secular galaxy evolution. Bars impose a non-axisymmetric perturbation to the rotating disk…

astro-ph.GA2025

RIOJA. The dusty outflows and density-complex interstellar medium in the N-enhanced lensed galaxy RXCJ2248-ID at z=6.1

A. Crespo Gómez, Y. Tamura, L. Colina +19

We present an analysis on the kinematics and physical properties of the ionized gas in the lensed galaxy RXCJ2248-ID at z=6.1 based on high-resolution JWST NIRSpec/IFU data in comb…

astro-ph.GA2025

A warm ultra-luminous infrared galaxy just 600 million years after the Big Bang

T. J. L. C. Bakx, Laura Sommovigo, Yoichi Tamura +24

We present an Atacama Large Millimeter/submillimeter Array (ALMA) Band 9 continuum detection () of MACS0416_Y1 that confirms the suspected warm dust (91 K) of…

astro-ph.GA2025

Association of cold gas, massive galaxies, and AGNs in a filamentary protocluster traced by triple narrow-band imaging

Kazuki Daikuhara, Tadayuki Kodama, Haruka Kusakabe +13

We investigate galaxy populations in the HS1700+64 protocluster at , characterized by two prominent linear filaments traced by spatially extended Ly blobs. We conducted…

astro-ph.GA2025

ELPIS: Accelerated metal and dust enrichment in a proto-cluster core at

Hideki Umehata, Yoichi Tamura, Yoshinobu Fudamoto +17

We present a study of the metal, dust, and molecular gas content in galaxies within the A2744-z7p9OD proto-cluster at z ~ 7.88. We focus on two galaxy groups, the Quintet and the C…

astro-ph.GA2025

Early massive galaxy formation in the core of a galaxy protocluster 650 million years after the Big Bang

Yoshinobu Fudamoto, Yurina Nakazato, Daniel Ceverino +24

Rest-frame optical observations with the James Webb Space Telescope (JWST) have uncovered a population of massive galaxies, exceeding solar masses, present less than a bi…

astro-ph.GA2025

ALMA Deep Field in SSA22: Reconstructed [CII] Luminosity Function at z = 6

Natsuki H. Hayatsu, Rob J. Ivison, Paola Andreani +19

The ADF22 line survey reported detections of two high- line-emitting source candidates above 6-, both of which were shown to be spurious after follow-up observations. We inve…

astro-ph.GA2025★ 3 cited

Formation of Substructure in Luminous Submillimeter Galaxies (FOSSILS): Evidence of Multiple Pathways to Trigger Starbursts in Luminous Submillimeter Galaxies

Ryota Ikeda, Daisuke Iono, Ken-ichi Tadaki +19

We present an analysis of rest-frame optical and far-infrared continuum emission in three luminous submillimeter galaxies (SMGs) at . The SMGs are spatial…

astro-ph.GA2025

SHELLQs-JWST perspective on the intrinsic mass relation between supermassive black holes and their host galaxies at z > 6

John Silverman, Junyao Li, Xuheng Ding +36

The relation between the masses of supermassive black holes (SMBHs) and their host galaxies encodes information on their mode of growth, especially at the earliest epochs. The Jame…

astro-ph.GA2025★ 1 cited

Compact Ionized Gas Region Surrounded by Porous Neutral Gas in a Dusty Lyman Break Galaxy at Redshift

Masato Hagimoto, Yoichi Tamura, Akio K. Inoue +9

Porous interstellar medium (ISM) structure in galaxies at the epoch of reionization (EoR) gives us a hint to understand what types of galaxies contribute to reionization. Although…

astro-ph.CO2025

The first direct imaging of the silhouette of a damped Lyman system along the line-of-sight to a background galaxy

Fuga Komori, Akio K. Inoue, Ken Mawatari +7

The H~{\sc i} gas distribution in damped Lyman absorbers (DLAs) has remained elusive due to the point-source nature of background quasar emission. Observing DLAs against spatia…

astro-ph.GA2025★ 10 cited

SHELLQs-JWST Unveils the Host Galaxies of 12 Quasars at z>6

Xuheng Ding, Masafusa Onoue, John D. Silverman +35

The advent of JWST has opened new horizons in the study of quasar host galaxies during the reionization epoch (z>6). Building upon our previous initial measurements of stellar ligh…

astro-ph.GA2025★ 1 cited

A Potential Link between Nuclear Winds and Cold Gas Outflows on Kiloparsec Scales in Reionization-Era Quasars

Yongda Zhu, Marcia J. Rieke, Luis C. Ho +23

Feedback from accreting supermassive black holes may regulate galaxy evolution, but statistical evidence linking nuclear winds to kiloparsec-scale cold gas outflows remains limited…

astro-ph.GA2025

Medium-band Astrophysics with the Grism of NIRCam In Frontier fields (MAGNIF): Spectroscopic Census of H Luminosity Functions and Cosmic Star Formation at and 6.3

Shuqi Fu, Fengwu Sun, Linhua Jiang +35

We measure H luminosity functions (LFs) at redshifts and 6.3 using the JWST MAGNIF (Medium-band Astrophysics with the Grism of NIRCam In Frontier fields) survey. MA…