1. Leibniz-Institut für Astrophysik Potsdam (AIP) , An der Sternwarte 16, D-14482 Potsdam, Germany
2. Astronomisches Institut, Ruhr-Universität Bochum, Universitätsstr . 150, D-44801 Bochum, Germany
3. Department of Physics, Montana State University , PO Box 173840, Bozeman, MT 59717, USA
4. National Optical–Infrared Astronomy Research Laboratory (NOIRLab) , 950 North Cherry Avenue, Tucson, AZ 85719, USA
5. Institute of Astronomy and Astrophysics , Academia Sinica, No. 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan
6. Center for Astrophysics and Space Sciences, Department of Physics, University of California , San Diego 9500 Gilman Drive, La Jolla, CA 92093, USA
7. Department of Physics and Astronomy , Macquarie University, Balaclava Road, Sydney, NSW 2109, Australia
8. Research Centre for Astronomy , Astrophysics and Astrophotonics, Macquarie University, Balaclava Road, Sydney, NSW 2109, Australia
9. Koninklijke Sterrewacht van België , Ringlaan 3, BG-1180 Brussels, Belgium
10. Lennard-Jones Laboratories , School of Chemical and Physical Sciences, Keele University, Keele ST5 5BG, UK
11. Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA
12. European Southern Observatory , Karl-Schwarzschild-Str. 2, D-85748 Garching bei München, Germany
13. Department of Physics, University of Surrey , Guildford GU2 7XH, UK
14. National Centre for Nuclear Research , ul. Pasteura 7, PL-02-093 Warszawa, Poland
15. Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatory , Casilla 603, La Serena, Chile
16. Steward Observatory and Department of Astronomy, The University of Arizona , Tucson, AZ 85721, USA