Broadly speaking, my main interests are in theoretical astrophysics and cosmology. I have worked on large scale structure, the intergalactic medium, gravitational lensing, early universe physics, particle astrophysics and extra-solar planets. You can find my publications at the astro-ph, hep-ph and hep-th archives.
 

A series of 3 introductory lectures on cosmology aimed at undergraduates.
 

Physics W3002 - From Quarks to the Cosmos, Spring 2006, Spring 2007, Spring 2009

Physics G8012 - Astrophysics II: Topics in General Relativity, Fall 2008

Science 003B - Introduction to Cosmology, Summer 2008

Physics G8099 - Advanced Seminar: String Theory, Spring 2008

Astronomy G6005 and Physics G6010 - Cosmology, Fall 2005, Fall 2006, Fall 2007

Physics G8050 - Advanced Mathematical Methods: an Introduction to String Theory, Spring 2005

Astronomy and Astrophysics 182 (U. of Chicago) - The Origin and Evolution of the Universe, an undergraduate cosmology course for non-science majors, Fall 2003

Astronomy and Astrophysics 434 (U. of Chicago) - Graduate Seminar on Gravitational Lensing, Spring 2003

Physics Graduate Student Seminar, 2001-2002

Physics G8040 - General Relativity, Fall 2001

Physics G4003 - Advanced Mechanics, Spring 2001, Spring 2002

Astronomy G6005 - Physical Cosmology, Fall 2000
 

Department of Astronomy

Columbia University

September 1, 2008