Investigating spatially resolved properties of galaxies offers important constraints on the mechanisms by which galaxies form stars and grow in stellar mass. The James Webb Space Telescope (JWST) not only facilitates a systematic exploration of high redshift galaxies, but also enables a detailed study of the rest-frame mid-infrared (mid-IR) and the optical emission lines of galaxies at intermediate redshifts, which together provide valuable insights into the overall star formation processes. In this talk, I will present the spatially resolved H-alpha equivalent width (EW) maps for galaxies at z~1-2 using JWST NIRISS WFSS observation from the Next Generation Deep Extragalactic Exploratory Public (NGDEEP) Survey. We studied the H-alpha EW radial gradient and compared the pixel-to-pixel H-alpha EW with properties derived from SED fitting and the relations derived from integrated fluxes of galaxies from the literature. These results provide insight into the disk and bulge growth. In addition, I will present results from the evolution of physical conditions of the star-forming gas in galaxies at z~1-3 using NGDEEP data.
BIO
Lu Shen is currently a postdoctoral researcher at Taxes A & M University. She obtained her Ph. D in the University of California, Davis, with her PhD thesis on the topic of “Radio Galaxies and The Role of Environment”. She then worked as a postdoctoral researcher at the University of Science and Technology of China. Her research focuses on the spatially resolved star formation of galaxies in moderate-to-high redshift, and the role of clusters and protoclusters environments on galaxy evolution. She also studies the outflow and superbubbles surrounding the luminous red quasars.
