1. University of Arizona, Steward Observatory, Tucson, Arizona, United States
2. University of Iowa, Department of Physics and Astronomy, Iowa City, Iowa, United States
3. California Institute of Technology, Cahill Center for Astrophysics, Pasadena, California, United States
4. Columbia University, New York, New York, United States
5. Centre National D’Études Spatiales, Toulouse, France
6. Aix Marseille Université, CNRS, CNES, Laboratoire d’Astrophysique de Marseille (LAM), Marseille, France
7. Jet Propulsion Laboratory, Pasadena, California, United States
8. Observatoire de Paris, CNRS, Paris, France