We thank the referee, Dr. M.S. Bessel, for his valuable comments and helpful advice. We thank the Center for Astrophysics for generous allotment of telescope time. We are also grateful to the staffs of Paris Observatory, Whipple Observatory and NOAO who helped build the FLUOR beam combiner. We especially thank Le Verre Fluoré company who provided the fibers and constant technical support. GP and VCDF are grateful to Sydney Wolff and Richard Green for their hospitality when they are visiting NOAO.
© European Southern Observatory (ESO) 1998
Online publication: February 16, 1998