You may also be interested in my page on IMBHs for the General Public.

I still collaborate with my Ph.D. advisor, M. Coleman Miller, as well as Douglas P. Hamilton.

Recent observations suggest the possibility of black holes with mass, M ~ 100 to 10,000 M_⊙ in stellar clusters. If true, this represents a class of black holes distinct from stellar-mass black holes (thought to be the result of a core collapse supernova) and supermassive black holes (found in the centers of galaxies). The formation of these intermediate-mass black holes (IMBHs) may also be linked to stellar-mass black hole mergers involving binary-single black hole encounters, and any IMBH in a stellar cluster is likely to undergo similar encounters. The binaries involved in these encounters are also important sources of gravitational waves detectable by Advanced LIGO and LISA. My work centers on the numerical study of three-body encounters in the astrophysical context of globular clusters. I have developed a code that can integrate post-Newtonian encounters of point-masses. This is used to simulate encounters between binary black holes and interlolping black holes. I am interested in how such encounters affect the semimajor axis and eccentricity of the binary in the high mass ratio case. The code also simulates a series of encounters that a binary would face in the core of a globular cluster until it finally merges due to gravitational radiation.

1. Gultekin, K., Miller, M.C., & Hamilton, D.P. (2005), "Three-Body Dynamics with Gravitational Wave Emission," ApJ 640, 156. Local Preprint.
2. Gultekin, K., Miller, M.C., & Hamilton, D.P. (2004), "Growth of Intermediate-Mass Black Holes in Globular Clusters," ApJ, 616, 221. Preprint.
3. Gultekin, K., Miller, M.C., & Hamilton, D.P. (2003), "Three Body Encounters of Black Holes in Globular Clusters," conference proceedings of The Astrophysics of Gravitational Wave Sources held 24-26 April 2003. Preprint.
4. Gultekin, K., Miller, M.C., & Hamilton, D.P. (2002), "Three Body Interactions of Black Holes in Globular Clusters," Bulletin of the American Astronomical Society, 195, 05.02. Preprint.

Plus those at ADS and astro-ph that might have slipped through the cracks. Please note that when searching for my papers on ADS, you again have to search for both "Gultekin" and "Gültekin" if you want to find all of my papers. Or not. They seem to break and fix this on a regular basis. (Not to complain about an amazing service.)

• Govert Schilling wrote a nice little article in Science about work I have done with my collaborators.