Education

Ph.D. Astronomy 1992, University of Michigan

S.B. Physics 1985, Massachusetts Institute of Technology

Theses

Ph.D.: The Physical Properties of Low Surface Brightness Galaxies
Advisor: G.D. Bothun

S.B.: The Extended Stellar Shells of Arp 227
Advisor: G.W. Clark

Employment

Professor, Department of Astronomy, Case Western Reserve University 2012-

Director, Astronomy Program 2023-

Chair, Department of Astronomy 2015-2022

Director of the Warner & Swasey Observatory 2015-2022

Professor, Department of Astronomy, University of Maryland 1998-2012

Professor, 2009-2012

Associate Professor, 2003-2009

Assistant Professor, 1998-2003

Research Fellow, Physics and Astronomy, Rutgers University 1997-1998

Carnegie Fellow, Department of Terrestrial Magnetism, Carnegie Institution of Washington 1995-1998

Research Associate, Institute of Astronomy, University of Cambridge 1992-1995

Other Appointments

Adjunct Professor, Department of Astronomy & CERCA, Case Western Reserve University 2009-2012

JSI Fellow, Joint Space-Science Institute, University of Maryland & NASA Goddard Space Flight Center 2011-2012

Adjunct Professor, Department of Astronomy, University of Maryland 2012-2014

Professor (Secondary appointment), Department of Physics, Case Western Reserve University 2013-

Research Interests

Low Surface Brightness Galaxies

Galaxy Formation and Evolution

Tests of Dark Matter and alternative hypotheses

Measurements of Cosmological Parameters

Professional Societies

IAU, AAS, DDA

Committee of the DDA (2007-2009)

DDA nominating committee (2014-2016)

Publications