Affiliation: | Department of Astronomy, MC-221, University of Illinois, 1002 West Green Street, Urbana, IL 61801, USA;National Center for Supercomputing Applications, MC-476, University of Illinois, 605 East Springfield Avenue, Champaign, IL 61820, USA;Astronomy Centre, University of Sussex, Falmer, Brighton BN1 9QJ;Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Egerton Wharf, Birkenhead CH41 1LD;Apache Point Observatory, PO Box 59, Sunspot, NM 88349, USA |