Ian McGreer University of Arizona Fuyan Bian European Southern Observatory - Chile Benjamin Clement Ecole Polytechnique Federale de Lausanne Xiaohui Fan University of Arizona Brenda Louise Frye University of Arizona Linhua Jiang Peking University Jean-Paul Richard Kneib Ecole Polytechnique Federale de Lausanne Marceau Limousin CNRS, Laboratoire d'Astrophysique de Marseille Daniel P. Stark University of California - Berkeley