1. Department of Astronomy, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
2. National Center for Supercomputing Applications, University of Illinois at Urbana-Champaign, 605 East Springfield Avenue, Champaign, IL 61820, USA
3. Harvard–Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
4. Institute for Theory and Computation, Harvard University, 60 Garden Street, Cambridge, MA 02138, USA
5. Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
6. University of California Observatories-Lick Observatory, University of California, 1156 High Street, Santa Cruz, CA 95064, USA