1. Astronomy Department, University of Michigan, Ann Arbor, MI 48109, USA
2. The CHARA Array, Mount Wilson Observatory, Mount Wilson, CA 91023, USA
3. National Optical Astronomy Observatory, Tucson, AZ 85726, USA
4. Department of Physics and Astronomy, Macquarie University, NSW 2109, Australia
5. Astronomy Department, Georgia State University, Atlanta, GA 30303, USA