Institution: | 1. Space Telescope Science Institute, 3700 San Martin Dr, Baltimore, MD 21218, USA;2. Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218, USA;3. University of Wisconsin, 1308 W. Dayton Street, Madison, WI 53715, USA;4. INAF/Osservatorio Astronomico di Padova, Vicolo Osservatorio 5, 35122 Padova, Italy |