Research Interests

My primary research interests are X-ray astronomy and observational cosmology, studying the physics of galaxy clusters, supermassive black holes, dark matter and dark energy.

• Cosmology

Career History

• Ph. D., University of Cambridge, 1995
• P.P.A.R.C. Postdoctoral Research Fellow, University of Cambridge, 1994-1996
• Charles & Katherine Darwin Research Fellow, Cambridge, 1996-1999
• Royal Society University Research Fellow, University of Cambridge, 1999-2004
• Assistant Professor, Stanford Physics Department and SLAC, 2005-2008
• Associate Professor, Stanford Physics Department and SLAC, 2008-present
• Co-recipient, Bruno Rossi Prize, American Astronomical Society, 2008