1. Chinese Academy of Sciences South America Center for Astronomy (CASSACA), 20A Datun Road, Beijing 100012, China
2. Caltech-Infrared Processing and Analysis Center, 1200 East California Boulevard, Pasadena, CA 91125, USA
3. UCLA, Department of Physics and Astronomy, Los Angeles, CA 90095, USA
4. Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
5. CNRS, UMR7095, Institut d′Astrophysique de Paris, F-75014 Paris, France
6. UPMC Univ Paris 06, UMR7095, Institut d’Astrophysique de Paris, F-75014 Paris, France
7. Picower Institute of Learning and Memory, Cambridge, MA 02139-4307, USA