6 papers · 1 filter
Difference Between Half-mass Radius and Half-light Radius of Galaxies at 0.2 2.5 Revealed by JWST/NIRCam Data
Mingen Xin, Guanwen Fang, Jie Song +3
Using JWST observations in CANDELS fields, we measure the half-light radius () and half-mass radius () for 14,333 galaxies with stellar masses $M_*…
Dual-coding contrastive learning based on ConvNeXt and ViT models for morphological classification of galaxies in COSMOS-Web
Shiwei Zhu, Guanwen Fang, Chichun Zhou +4
In our previous works, we proposed a machine learning framework named \texttt{USmorph} for efficiently classifying galaxy morphology. In this study, we propose a self-supervised me…
The H concentration of local star-forming galaxies: implications for galaxy structure formation
Zhizheng Pan, Xianzhong Zheng, Xu Kong
In this work, we present a study on the H emission line flux concentration of 3098 low-redshift star-forming galaxies (SFGs) using the MaNGA data available in the Data Release 1…
A Glimpse of Satellite Galaxies in the Milky Way with the 2.5-meter Wide Field Survey Telescope (WFST): Bootes III and Draco
Chao Yang, Zhizheng Pan, Min Fang +34
We carry out deep imaging of the Milky Way satellite galaxies, Bootes III and Draco, with WFST as one pilot observing program to demonstrate the capability of WFST. Combining catal…
Dominant Role of Coplanar Inflows in Driving Disk Evolution Revealed by Gas-Phase Metallicity Gradients
Cheqiu Lyu, Enci Wang, Hongxin Zhang +8
Using spatially resolved spectroscopic data from the MaNGA sample, we investigate the parameters influencing the radial gradients of gas-phase metallicity ($\nabla\log(\mathrm{O/H}…
The Ly non-detection by JWST NIRSpec of a strong Ly emitter at confirmed by MUSE
Haochen Jiang, Xin Wang, Cheng Cheng +6
The detections of Lyman- () emission in galaxies with redshifts above 5 are of utmost importance for constraining the cosmic reionization timeline, yet such detections…