Cosmology: Cosmic Microwave Background Radiation, Inflation, Formation and Evolution of Galaxies and their Nuclear Black Holes, Reionization in the Early Universe, First Stars and Galaxies, Gravitational Lensing, 21 cm Radiation in the Early Universe, Cosmological Parameters, Dark Matter and Dark Energy.
Some examples of cosmological simulations produced at the ITC:
M. Vogelsberger and D. Sijacki - Moving Mesh Cosmology.
P. Torrey and M. Vogelsberger - Evolving Universe
M. Vogelsberger et al. - A physical model for cosmological simulations of galaxy formation

Faculty:
Daniel Eisenstein, Douglas Finkbeiner, Lars Hernquist, John Kovac, Avi Loeb, Ramesh Narayan, Mark Reid, Christopher Stubbs, Alexey Vikhlinin

High Energy Astrophysics: Accretion Disks around Compact Objects, Stellar Mass Black Holes, Supermassive Black Holes, Gamma Ray Bursts, Radiative Transfer around Compact Objects

Faculty:
Rosanne Di Stefano, Avi Loeb, Jim Moran, Ramesh Narayan, Mark Reid, George Rybicki, Alicia Soderberg

Planetary Astronomy: Extra-Solar Planets, Proto-Planetary Disks, Kuiper Belt Objects, Outer Solar System, Planet Formation, Gravitational Dynamics

Faculty:
Charles Alcock, Matthew Holman, John Johnson, Karin Oberg, Dimitar Sasselov

Stars: Stellar Atmospheres, Stellar Oscillations, Interactions between Stars and Proto-Planetary Disks

Faculty:
Charles Alcock, Charlie Conroy, Steven Cranmer, Eric Keto, George Rybicki, Dimitar Sasselov

Gravity: Tests of Gravity, Equivalence Principle

Faculty:
Jim Moran, Irwin Shapiro, Christopher Stubbs