# Research Scientist | Jonathan Thornburg

Senior Scientist

Ph.D. Astronomy, University of British Columbia, 1993

##### Contact Information:

Astronomy Department

Indiana University

Swain West 312

727 East Third Street

Bloomington, IN 47405

Phone: (812) 855-6918

Fax: (812) 855-8725

**Biographical Information:**

Dr. Thornburg joined the IU Astronomy faculty in 2008 as a Research Scientist. He received a B.S. in Mathematics, Physics, and Computer Science from Simon Fraser University in 1983, and his M.S. and Ph.D in Astronomy from the University of British Columbia in 1985 and 1993 respectively. He has been a postdoctoral fellow at the University of Texas at Austin, the University of Vienna, and the Max Planck Institute for Gravitational Physics in Potsdam, Germany. Most recently he was a lecturer in the School of Mathematics at the University of Southampton.

**Research Interests**

^{5}:1). These "EMRIs" (extreme mass ratio inspirals) model stellar-mass black holes orbiting the galactic-center black hole, and are expected to be strong sources of gravitational radiation for the proposed LISA space gravitational-radiation detector.

**Selected Publications**

- Adaptive mesh refinement for characteristic grids

Thornburg, J. 2011, General Relativity and Gravitation,**43**, 1211. - Effect of massive perturbers on extreme mass-ratio inspiral waveforms

Yunes, N., Coleman, M. M., & Thornburg, J. 2011, PhysRevD,**83**, 044030. - Are moving punctures equivalent to moving black holes?

Thornburg, J., Diener, P., Pollney, D., Rezzolla, L., Schnetter, E., Seidel, E., & Takahashi, R. 2007, Classical and Quantum Gravity**24**, 3911. - Event and Apparent Horizon Finders for 3+1 Numerical Relativity

Thornburg, J., 2007, Living Reviews in Relativity**10**, 3. - Recoil Velocities from Equal-Mass Binary-Black-Hole Mergers

Koppitz, M., Pollney, D., Reisswig, C., Rezzolla, L., Thornburg, J., Diener, P., & Schnetter, E., Physical Review Letters**99**, 041102. - Black-hole excision with multiple grid patches

Thornburg, J., 2004, Classical and Quantum Gravity**21**, 3665. - A fast apparent horizon finder for three-dimensional Cartesian grids in numerical relativity

Thornburg, J., 2004, Classical and Quantum Gravity**21**, 743. - New transition between discrete and continuous self-similarity in critical gravitational collapse

Lechner, C., Thornburg, J., Husa, S., & Aichelburg, P. C. 2002, Physical Review D**65**, 081501(R).

http://www.astro.indiana.edu/~jthorn