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I am an astrophysicist at the National Astronomical Observatories, Chinese Academy of Science. My current research focuses on understanding the role of gaseous halos on galaxy formation and evolution. Also, I'm fascinated by the relationship between pristine gas/galaxies and the first generation of stars.

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I serve as an active member and co-lead of the absorber topical group within the Dark Energy Spectroscopic Instrument Survey. I am involved in several exciting multiwavelength observation projects, utilizing instruments such as JWST, VLT, and ALMA, to delve deeper into the study of the baryonic cycle and chemical enrichment in the universe.

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Email: siwei1905@gmail.com

           zousw@bao.ac.cn

Upcoming events

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Galaxies in the First Billion Years Workshop 2026

Santiago Chile, November 9-12 2026

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Weaving the Cosmic Web: Large-Scale Structure and Galaxy Formation at High Redshift

ESO Chile, May 24-27 2027

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​​​Past events 

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Hiring Postdocs (aas job link) and students 

 

The Baryon Cycle from Reionization to the Cosmic Noon ConferencePuerto Varas, Chile, December 8-12 2025​

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