Author

F. Bian

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Preprint Oct 2026

Can Blue UV-Bright Galaxies Drive Reionization at Cosmic Dawn? An $M_{\rm UV}=-19.6$ Galaxy with $f_{\rm esc}\approx0.85$ at $z=9.244$

We revisit EBG-1, a gravitationally lensed galaxy at $z = 9.244$, using newly obtained deep (14 hr) JWST/NIRSpec G235M ($R \sim 1000$) spectroscopy. EBG-1 is one of the bluest galaxies observed at $z>9$. Along with its remarkably blue continuum of $\beta = -2.99 \pm 0.15$, we find very weak nebular emission from EBG-1....

Yun-Jing Wu, Si-Jia Cai, Yong-Da Zhu et al. · 0 citations

Preprint Sep 2026

Internal Structure, Not Environment, Shapes Metallicity Gradients in Low-Mass Galaxies from MaNGA

Dwarf and low-mass galaxies are highly sensitive to stellar feedback and gas flows, yet their spatially resolved gas-phase metallicity remains poorly characterised. We measure radial gas-phase metallicity gradients for 382 star-forming low-mass galaxies from MaNGA DR17, spanning $7.2 \leq \log(M_{\star}/M_{\odot}) \leq...

A. Dasgupta, N. Roy, S. Samui et al. · 0 citations

Review Open access Sep 2026

VLT/MUSE Study of Close Active Galactic Nucleus Pairs and Host Galaxies in the Local Universe. I. Overview of the Ionized Gas

Studying active galactic nucleus (AGN) pairs and their host galaxies is essential for understanding the interplay between galaxy mergers and key internal processes such as supermassive black hole fueling and feedback. We crossmatch between the Big Multi-AGN Catalog and the public data archive of the Very Large Telescop...

Xiao-Yu Xu, Zhi-Yuan Li, Mei-Cun Hou et al. · Astrophysical Journal Supple... · 0 citations