1. Stellar Astrophysics Centre, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmark
2. Institut für Astrophysik, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, D-37077 Göttingen, Germany
3. Max-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg 3, D-37077 Göttingen, Germany
4. Institute for Astronomy, University of Hawai‘i, 2680 Woodlawn Drive, Honolulu, HI 96822, USA
5. Sydney Institute for Astronomy (SIfA), School of Physics, University of Sydney, NSW 2006, Australia
6. SETI Institute, 189 Bernardo Avenue, Mountain View, CA 94043, USA
7. Department of Astronomy, The University of Texas at Austin, Austin, TX 78712, USA
8. Department of Astronomy, Columbia University, 550 West 120th Street, New York, NY 10027, USA
9. Research School of Astronomy and Astrophysics, Mount Stromlo Observatory, The Australian National University, ACT 2611, Australia
10. ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), Australia
11. The CHARA Array of Georgia State University, Mount Wilson Observatory, Mount Wilson, CA 91023, USA