Early Universe Laboratory Department of Astronomy · Westlake University

Galaxies in the first two billion years

We study how galaxies and stars formed in the early Universe, using JWST imaging and slitless spectroscopy together with ALMA interferometry and gravitational lensing. Besides the science, we build the calibrations, methods and data products that make these faint measurements possible, and we maintain LRDigest, a weekly archive of the little-red-dot literature.

Fengwu Sun's pages Team & openings Programmes

People

Fengwu Sun

Assistant Professor; PI

Xiaohan Wang

Postdoctoral fellow

Ruwen Zhou

PhD student

Xuelian Zhang

Administrative assistant

Incoming PhD students (2027): Tianyao Wang (Fudan University) and Qishen Zhong (Tsinghua University).

Data & tools

LRDigest — weekly little-red-dot literature archive
MIRI WFSS calibration — calibration suite and mid-infrared spectral atlas
NIRCam WFSS reductions — public notebook for grism spectra
vMPT — JWST/NIRSpec MSA planning tool