collaborators

7 papers

astro-ph.GA2025

Spider-Webb: Spatially-Resolved Evidence of Inside-Out Quenching in the Spiderweb Protocluster at

Ronaldo Laishram, Yusei Koyama, Abdurrahman Naufal +6

We present a spatially-resolved analysis of galaxy quenching within the Spiderweb Protocluster at , combining deep imaging from the James Webb Space Telescope (JWST) a…

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

Environmental Regulation of Dust and Star Formation Unveiled by Subaru Dual Narrow-band Imaging: Degree-scale Balmer Decrement Mapping across a z = 0.9 Supercluster

Zhaoran Liu, Tadayuki Kodama, Brian C. Lemaux +13

We present results from a dual narrow-band imaging survey targeting the CL1604 supercluster at z = 0.9 using the Subaru Telescope. By combining the NB921 filter on HSC and the NB12…

astro-ph.GA2025

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…

astro-ph.GA2025

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…

astro-ph.GA2024

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…