I am a Professor of Astronomy at Yale University. My research focusses on various aspects of cosmology, large scale structure, and galaxy formation. 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 have written over 175 papers in refereed journals and am also the author of the textbook Galaxy Formation and Evolution published by Cambridge University Press.

Teaching

 During the Fall 2019 semester I will be teaching

ASTR 320: Physical Processes in Astronomy

Latest News

08/13/2016: Press Release on Cosmic Fog; exciting new results from HYPA team

08/02/2019: Johannes Lange succesfully defends his PhD thesis. Congrats Dr. Lange

04/09/2019: Sheridan Green awarded NSF Fellowship. Congrats Sheridan

03/15/2019: Johannes Lange is awarded the first Stanford-Santa Cruz Cosmology Fellowship

08/18/2017: Duncan Campbell succesfully defends his PhD thesis. Congrats Dr. Campbell

07/28/2017: Read my comments on a press release on galactic mass transfer.

10/05/2016: Johannes Lange awarded KITP Graduate Fellowship allowing him to spent 6 months at KITP Santa Barbara [click here]

10/01/2016: Nir Mandelker arrived as the first HYPA Fellow.

08/17/2016: Press Release on HYPA; The HITS-Yale Program in Astrophysics

06/07/2016: Fangzhou Jiang succesfully defends his PhD thesis. Congrats Dr. Jiang

03/29/2016: Fangzhou Jiang awarded 2016 Chinese Government Scholarship Award

Finding a cosmic fog within shattered intergalactic ‘pancakes’ - Education News

Finding a cosmic fog within shattered intergalactic ‘pancakes’

Recent Papers

Dark matter substructure in numerical simulations: a tale of discreteness noise, runaway instabilities, and artificial disruption

Disruption of dark matter substructure: fact or fiction?

Statistics of dark matter substructure – III. Halo-to-halo variance

Brightest galaxies as halo centre tracers in SDSS DR7

Modelling the line-of-sight contribution in substructure lensing

The Galaxy Clustering Crisis in Abundance Matching

Dissecting Subhalo Evolution in the Bolshoi Simulation

Cold Filamentary Accretion and the Formation of Metal Poor Globular Clusters and Halo Stars