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B.Sc., 1987, Mathematical Science, University College Dublin, Ireland. M.Sc., 1988, Mathematical Science, University College Dublin. Ph.D., 1993, California Institute of Technology. Postdoctoral fellow, California Institute of Technology, 1993-94. Enrico Fermi fellow, University of Chicago, 1994-96. Assistant Professor, Physics and Astronomy, Cornell, 1996-2001. Associate Professor, Physics and Astronomy, Cornell, 2001-2005. Professor, Physics and Astronomy, Cornell, 2006 - present. Alfred P. Sloan fellow, 1997-99. Radcliffe fellow, 2002-03. Xanthopoulos prize in gravitation, 2004. Fellow of the American Physical Society, 2008.

Research Areas
General relativity, structure of singularities, radiation reaction of point particles; theoretical astrophysics; gravitational wave astronomy; early Universe cosmology and extra dimensions, brane world cosmology; dark energy, modifications of general relativity; semi-classical gravity

Current Research

My research group works on the physics of strong gravitational fields. We develop quantitative models of processes involving neutron stars, black holes, and the early Universe, which will be useful when compared with data from gravitational wave detectors like the Laser Interferometer Gravitational Wave Observatory (LIGO). Other research topics include the exploration of models of the early Universe involving extra dimensions and membranes, and models
of the recent acceleration of the Universe involving modifications of general relativity.

Graduate Students 
Jolyon Bloomfield, Naresh Kumar and Justin Vines

Postdocs
Eran Rosenthal