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20242026
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astro-ph.GA2026

Observational Evidence for Anisotropic Metal Excess around Galaxies

Cheqiu Lyu, Enci Wang, Zeyu Chen +4

The exchange of matter and energy between galaxies and their surroundings drives the cosmic baryon cycle, yet mapping metal transport remains an observational challenge. While simu…

astro-ph.GA2026

Transition from Outside-in to Inside-Out at : Evidence from Radial Profiles of Specific Star Formation Rate based on JWST/HST

Jie Song, Enci Wang, Cheng Jia +7

By combining high-resolution observations from JWST and HST, we have measured the stellar masses, star formation rates (SFRs), and multi-wavelength morphologies of galaxies in the…

astro-ph.GA2026

First Statistical Detection of MgII-traced Cool Gas Outflows with JWST Towards Cosmic Dawn

Cheqiu Lyu, Haoran Yu, Enci Wang +9

Galactic-scale outflows are a crucial component of galaxy evolution, yet their properties in the early universe remain poorly constrained. We present the first statistical investig…

astro-ph.GA2025

Central Concentration and Escape of Ionizing Photons in Galaxies at the Epoch of Reionization

Cheqiu Lyu, Enci Wang, Junxian Wang +9

Compact, low-mass galaxies with strong nebular emission are considered promising candidates for efficient ionizing photon production and escape. We present a spatially resolved ana…

astro-ph.GA2024

Size Growth on Short Timescales of Star-Forming Galaxies: Insights from Size Variation with Rest-Frame Wavelength with JADES

Cheng Jia, Enci Wang, Huiyuan Wang +11

We investigate size variation with rest-frame wavelength for star-forming galaxies based on the second JWST Advanced Deep Extragalactic Survey data release. Star-forming galaxies a…