1. Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Mönchhofstr. 12–14, D-69120 Heidelberg, Germany
2. Department of Astronomy, University of Wisconsin- Madison, 475 N. Charter Street, Madison, WI 53076-1582, USA
3. Center for Computational Astrophysics, Flatiron Institute, 162 Fifth Avenue, New York, NY 10010, USA
4. Department of Astronomy, The Oskar Klein Centre, Stockholm University, Stockholm, Sweden
5. IBM Research Division, T.J. Watson Research Center, Yorktown Hts., NY, USA
6. School of Physics and Astronomy, University of Exeter, Exeter, UK
7. Institut für Theoretische Astrophysik, Zentrum für Astronomie der Universität Heidelberg, Albert-Ueberle-Str. 2, D-69120 Heidelberg, Germany
8. Max Planck Institute for Astronomy, Königstuhl 17, D-69117 Heidelberg, Germany
9. Department of Astronomy, University of Massachusetts – Amherst, Amherst, MA 01003, USA
10. Department of Physics and Astronomy, Vassar College, Poughkeepsie, NY, USA
11. Department of Physics, University of Pisa, Largo B. Pontecorvo 3, I-56127 Pisa, Italy
12. INFN, Largo B. Pontecorvo 3, I-56127 Pisa, Italy
13. INAF – Osservatorio Astrofisico e di Scienza dello Spazio, Bologna, Italy
14. Department of Physics and Astronomy, University of Wyoming, Laramie, WY, USA
15. Space Telescope Science Institute, Baltimore, MD, USA
16. European Space Agency/Space Telescope Science Institute, Baltimore, MD, USA
17. Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, MD, USA
18. Visiting Astronomer, Spitzer Science Center, Caltech. Pasadena, CA, USA
19. Gemini Observatory, Casilla 603, La Serena, Chile
20. Department of Physics and Astronomy, State University of New York at Geneseo, Geneseo, NY, USA