I am a Professor of Astronomy at Yale University. My research focusses on various aspects of cosmology, large scale structure, galaxy formation and dynamics. Among others, I study the Galaxy-Dark Matter Connection using Halo Occupation Statistics, study the structure and assembly of dark matter haloes, model the formation and evolution of disk galaxies, constrain cosmological parameters using galaxies as mass tracers, use galaxy groups to study galaxy quenching, and use constrained simulations to model the local Universe. I also use N-body simulations and analytical methods to study dark matter substructure, dynamical friction, impulsive heating and fuzzy dark matter. I have written over 200 papers in refereed journals (of which 35 as first author) and am also the author of the textbook Galaxy Formation and Evolution published by Cambridge University Press.


NEW: all my lecture notes for all my courses are now available as single PDF files for download. Click here.

During the SPRING 2023 semester, I am teaching ASTR 320: Physical Processes in Astronomy

During the FALL 2023 semester, I will teach ASTR 501: Dynamics of Astrophysical Many-Body Systems

During the SPRING 2024 semester, I will teach ASTR 610: Theory of Galaxy Formation

Latest News

11/22/2022:  Video lectures (total of ~30hrs) of my graduate course Theory of Galaxy Formation are now available via the course's website
08/26/2022:  Dhruba Dutta Chowdhury successfully defends his PhD thesis. Congrats Dr. Dutta Chowdhury
10/28/2021:  Sheridan Green successfully defends his PhD thesis. Congrats Dr. Green
08/13/2019:  Press Release on Cosmic Fog; exciting new results from HYPA team
08/02/2019:  Johannes Lange successfully defends his PhD thesis. Congrats Dr. Lange
03/15/2019:  Johannes Lange awarded the first Stanford-Santa Cruz Cosmology Fellowship
08/18/2017:  Duncan Campbell successfully defends his PhD thesis. Congrats Dr. Campbell
08/17/2016:  Press Release on HYPA; The HITS-Yale Program in Astrophysics
06/07/2016:  Fangzhou Jiang successfully defends his PhD thesis. Congrats Dr. Jiang