activity
20242026
collaborators

10 papers

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.GA2025

The Stellar Morphology & Size of X-ray-selected Active Galactic Nuclei Host Galaxies Revealed by JWST

Bovornpratch Vijarnwannaluk, Zhen-Kai Gao, Wei-Hao Wang +19

We investigate the stellar shape and size-mass relationship of X-ray selected Active Galactic Nuclei (AGN) host galaxies using the high-angular resolution and deep sensitivity in t…

astro-ph.GA2025

REBELS-IFU: on the origin of the elevated [OIII]/[CII] ratios in the early Universe

Hiddo Algera, Lucie Rowland, Renske Smit +26

We present new ALMA [OIII] observations of eight previously [CII]-detected galaxies at . Six of our targets -- the primary sample -- are…

astro-ph.CO2025

Constraining cosmology with N-body simulations for future spectroscopic galaxy surveys at

Sy-Yun Pu, Teppei Okumura, Chian-Chou Chen +2

Determining the spatial curvature () independent of cosmic microwave background observations plays a key role in revealing the physics of the early universe. The Hubble tensi…

astro-ph.GA2025

Unveiling a Population of Strong Galaxy-Galaxy Lensed Faint Dusty Star-Forming Galaxies

Ting-Kai Yang, Chian-Chou Chen, Zhen-Kai Gao +10

The measurements of the number density of galaxy-galaxy strong lenses can be used to put statistical constraints on the foreground mass distributions. Dusty galaxies uncovered in s…

astro-ph.GA2025

GNHeII J1236+6215: A He II 1640 emitting and potentially LyC leaking galaxy at = 2.9803 unveiled through JWST & Keck observations

Chayan Mondal, Kanak Saha, Anshuman Borgohain +6

He II 1640 emission in galaxies indicates the presence of sources that produce extreme ionizing photons. Here, we report the discovery of a He II 1640 emitting galaxy, GNHe…