Cheqiu Lyu

Code and generated data for "Observational Evidence for Anisotropic Metal Excess around Galaxies"

Cheqiu Lyu

This repository contains the Jupyter Notebooks and generated data used for data processing, statistical analysis, and figure generation in the associated manuscript (https://arxiv.org/abs/2607.24929v1).

Code and generated data for "Observational Evidence for Anisotropic Metal Excess around Galaxies"

Cheqiu Lyu

This repository contains the Jupyter Notebooks and generated data used for data processing, statistical analysis, and figure generation in the associated manuscript (https://arxiv.org/abs/2607.24929v1).

Code and generated data for "Observational Evidence for Anisotropic Metal Excess around Galaxies"

Cheqiu Lyu

This repository contains the Jupyter Notebooks and generated data used for data processing, statistical analysis, and figure generation in the associated manuscript (https://arxiv.org/abs/2607.24929v1).

First Statistical Detection of Mg ii -traced Cool Gas Outflows with JWST toward Cosmic Dawn

Cheqiu Lyu, Haoran Yu, Enci Wang, Junxian Wang et autres

Abstract 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 investigation of Mg ii -traced cool gas outflows in galaxies spanning a wide cosmic timeline from z …

cn (code pays fourni par la source)

Transition from Outside-in to Inside-Out at $z\sim 2$: Evidence from Radial Profiles of Specific Star Formation Rate based on JWST/HST

Jie Song, Enci Wang, Jia Cheng, Cheqiu Lyu et autres

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 CANDELS fields. Furthermore, based on rest-frame 1 $μ$m morphologies, we have derived spatially resolved stellar mass and …

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

Cheqiu Lyu, Enci Wang, Junxian Wang, Jia Cheng et autres

Abstract Compact, low-mass galaxies with strong nebular emission are considered promising candidates for efficient ionizing photon production and escape. We present a spatially resolved analysis of 189 galaxies at redshifts z ∼ 6.7–7.6 in JADES GOODS-N and GOODS-S fields and selected via …

cn (code pays fourni par la source)

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

Cheqiu Lyu, Enci Wang, Junxian Wang, Jia Cheng et autres

Compact, low-mass galaxies with strong nebular emission are considered promising candidates for efficient ionizing photon production and escape. We present a spatially resolved analysis of 189 galaxies at redshifts $z \sim 6.7-7.6$ in JADES GOODS-N and GOODS-S fields and selected via JWST/NIRCam …

The Cosmic Evolution and Spatial Distribution of Multiphase Gas Associated with QSOs

Zeyu Chen, Enci Wang, Hu Zou, Haoran Yu et autres

Abstract We investigate the multiphase gas surrounding QSOs traced by 33 absorption lines (e.g., Lyα, C iv, Fe ii, Mg ii, etc.) in the stacked spectra of background sources, using the Early Data Release from the Dark Energy Spectroscopic Instrument. Our analysis …

Potential-driven Metal Cycling: JADES Census of Gas-phase Metallicity for Galaxies at 1 < z < 7

Jia Cheng, Enci Wang, Cheqiu Lyu, Chengyu Ma et autres

Abstract The gravitational potential is established as a critical determinant of gas-phase metallicity (12+log(O/H)) in low-redshift galaxies, whereas its influence remains unconfirmed at high redshifts. We investigate the correlation between gas-phase metallicity and effective radius (R e) for a sample of galaxies …

cn, gb (code pays fourni par la source)

Central Velocity Dispersion as the Primary Driver of Abundance Patterns in Quenched Galaxies

Haixin Li, Enci Wang, Cheqiu Lyu, Yangyao Chen et autres

Abstract The element abundances of galaxies provide crucial insights into their formation and evolution. Using high-resolution integral field unit data from the Mapping Nearby Galaxies at Apache Point Observatory survey, we analyze the central spectra (0–0.5 R e) of 1185 quenched galaxies …

cn (code pays fourni par la source)

Potential-Driven Metal Cycling: JADES Census of Gas-Phase Metallicity for galaxies at 1 < z < 7

Jia Cheng, Enci Wang, Cheqiu Lyu, Chengyu Ma et autres

The gravitational potential is established as a critical determinant of gas-phase metallicity (12+log(O/H)) in low-redshift galaxies, whereas its influence remains unconfirmed at high redshifts. We investigate the correlation between gas-phase metallicity and effective radius ($R_{\rm e}$) for a sample of galaxies with …

The Critical Role of Dark Matter Halos in Driving Star Formation*

Jing Tao Dou, Yingjie Peng, Qiusheng Gu, Luis C. Ho et autres

Abstract Understanding the physical mechanisms that drive star formation is crucial for advancing our knowledge of galaxy evolution. We explore the interrelationships between key galaxy properties associated with star formation, with a particular focus on the impact of dark matter (DM) halos. …

cn, it, fr, kr, gb (code pays fourni par la source)