10 citations · 26 across the 20 of their papers we have counts for
20 papers
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…
ALMA observations of pre-JWST z ~ 10 galaxy candidates: A CO(J = 9-8) line from a ULIRG at z = 2.54 and revisit of the photometric redshifts with JWST photometry
Suzuka Arai, Yuma Sugahara, Akio K. Inoue +15
We present Atacama Large Millimetre/submillimetre Array (ALMA) observations targeting the [OIII]m line for six galaxy candidates selected with the Hubble Space Tel…
A Type Ia Supernova Candidate at : A Transient Interloper in the Search for Galaxies
Seiji Toshikage, Takahiro Morishita, Masaomi Tanaka +9
The James Webb Space Telescope (JWST) is opening a new window into the distant Universe by discovering galaxies and transients in the early Universe. We investigate a high-redshift…
A Compact Proto-group at : A Massive Galaxy Caught in Formation
Ronaldo Laishram, Yusei Koyama, Fengwu Sun +11
We report the discovery of SCGG-z5, a compact galaxy proto-group at in the MACS0416 field, identified from the SAPPHIRES Early Data Release. Six members are spectroscopi…
Assessing Ultra-Cool Dwarf Contamination in Photometrically Selected High-Redshift Galaxy Samples
Onnalin Innala, Nicha Leethochawalit, Takahiro Morishita +1
Ultra-cool dwarf stars (UCDs) are a common source of contamination in high-redshift galaxy searches because both populations have red colors and these early-forming galaxies can ha…
BEACON: JWST NIRCam Pure-parallel Imaging Survey. III. Constraints on the UV LF and the Clustering of z~7-14 Galaxies
Kimi C. Kreilgaard, Charlotte A. Mason, Takahiro Morishita +21
The James Webb Space Telescope (JWST) has extended the frontier of galaxy detection to redshifts z>11, finding a high abundance of UV-bright sources that challenge theoretical mode…
GalSyn I: A Forward-Modeling Code for Synthetic Galaxy Observations from Hydrodynamical Simulations and First Data Release from IllustrisTNG
Abdurro'uf, Henry C. Ferguson, Samir Salim +9
We present GalSyn (Galaxy Synthesizer), a modular and flexible Python package for generating synthetic observations from hydrodynamical galaxy simulations. GalSyn generates synthet…
BEACON: JWST NIRCam Pure-parallel Imaging Survey. IV. A Systematic Search for Galaxy Overdensities and Evidence for Gas Accretion Mode Transition
Ryo Albert Sutanto, Takahiro Morishita, Tadayuki Kodama +20
We systematically search for galaxy overdensities using 20 independent fields with a minimum of six filters (F090W, F115W, F150W, F277W, F356W, and F444W) from BEACON, the JWST Cyc…
Nature of High Equivalent Width Emitters in the Epoch of Reionization Revealed by JWST Medium-band Imaging
Kazuki Daikuhara, Takahiro Morishita, Tadayuki Kodama +3
Extreme emission line galaxies (EELGs) at high redshifts are considered key contributors to cosmic reionization at due to their higher ionization efficiencies. We have identi…
Green Flash: Residual Emissions Enshrouded in Low-mass Balmer-break Galaxies at
Kosuke Takahashi, Takahiro Morishita, Tadayuki Kodama +3
Recent James-Webb Space Telescope (JWST) observations have discovered galaxies that are already passively evolving at , \,Gyr after the Big Bang. Remarkably, some of…
The GLASS-JWST Early Release Science Programme: The NIRISS Spectroscopic Catalogue
Peter J. Watson, Benedetta Vulcani, Tommaso Treu +18
We present a spectroscopic redshift catalogue of sources in the Abell 2744 cluster field, derived from JWST/NIRISS observations taken as part of the GLASS-JWST Early Release Scienc…
A stellar dynamical mass measurement of an inactive black hole at redshift 2
Andrew B. Newman, Meng Gu, Sirio Belli +34
Supermassive black holes and their host galaxies grow together over time, producing correlations between the black hole mass and various galaxy properties. Determining the evolutio…
Potential Nitrogen Enrichment via Direct-Collapse Wolf-Rayet Stars in a Star-Forming Galaxy
Yechi Zhang, Takahiro Morishita, Massimo Stiavelli
We present analyses of a nitrogen-enriched star-forming galaxy, ID60001, at based on JWST/NIRSpec MSA spectroscopy and NIRCam photometry. From rest-frame optical emissio…
Metallicity Scatter Originating from Sub-kiloparsec Starbursting Clumps in the Core of a Protocluster at z=7.88
Takahiro Morishita, Massimo Stiavelli, Eros Vanzella +9
We present new JWST NIRSpec integral field unit (IFU) G395H/F290LP observations of a merging galaxy system at , part of A2744-z7p9, the most distant protocluster to date. T…
BEACON: JWST NIRCam Pure-parallel Imaging Survey. I. Survey Design and Initial Results
Takahiro Morishita, Charlotte A. Mason, Kimi C. Kreilgaard +32
We introduce the Bias-free Extragalactic Analysis for Cosmic Origins with NIRCam (BEACON) survey, a JWST Cycle2 program allocated up to 600 pure-parallel hours of observations. BEA…
Deciphering Gas Dynamics and Star Formation in a z=1.1 Main Sequence Spiral Galaxy with ALMA and JWST
Zhaoran Liu, Tadayuki Kodama, Takahiro Morishita +6
We present a joint analysis of high-resolution CO(2-1) and Paschen- emission lines to trace gas dynamics and spatially resolved star formation in ASPECS-LP.3mm.06, a mai…
Accelerated Emergence of Evolved Galaxies in Early Overdensities at
Takahiro Morishita, Zhaoran Liu, Massimo Stiavelli +8
We report the identification of two galaxy overdensities at in the sightline of the galaxy cluster Abell 2744. These overdensities consist of 25 and 17 member galaxies,…
Characterizing Dust Extinction and Spatially Resolved Paschen- Emission within 97 Galaxies at with JWST NIRCam Slitless Spectroscopy
Zhaoran Liu, Takahiro Morishita, Tadayuki Kodama
We present results on the Paschen- (Pa) emitting galaxies observed as part of the JWST FRESCO survey in the GOODS-North and GOODS-South fields. Utilizing the JWST NIRCam wide…
Insights into Galaxy Morphology and Star Formation: Unveiling Filamentary Structures around an Extreme Overdensity at Traced by [OII] Emitters
Ronaldo Laishram, Tadayuki Kodama, Takahiro Morishita +3
We explore the morphological features and star formation activities of [OII] emitters in the COSMOS UltraDeep field at using JWST NIRCam data from the COSMOS-Web surve…
Between the Extremes: A JWST Spectroscopic Benchmark for High-redshift Galaxies Using ~500 Confirmed Sources at
Guido Roberts-Borsani, Tommaso Treu, Alice Shapley +6
The exceptional spectra of the most luminous sources observed so far have challenged our understanding of early galaxy evolution, requiring a new observational benchmark for…