[1
] INAF-Osservatorio Astronomico di Capodimonte, via Moiariello 16, I-80131 Naples,
Italy
[2
] Leibniz-Institüt fü Astrophysik Potsdam, An der Sternwarte 16, D-14482 Potsdam, Germany
[3
] Physics Astronomy and Mathematics, University of Hertfordshire, College Lane, Hatfield
AL10 9AB, UK
[4
] ICRAR M468, The University of Western Australia, 35 Stirling Hwy, Crawley, Western
Australia 6009, Australia
[5
] INAF-Osservatorio Astronomico di Bologna, Via Gobetti 93/3, I-40129 Bologna, Italy
[6
] Department of Astronomy, Kavli Institute for Astronomy and Astrophysics, Peking University,
Yi He Yuan Lu 5, Hai Dian District, Beijing 100871, China
[7
] International Space Science Institute–Beijing, 1 Nanertiao, Zhongguancun, Hai Dian
District, Beijing 100190, China
[8
] Astronomy Unit, School of Physics and Astronomy, Queen Mary University of London,
Mile End Road, London E1 4NS, UK
[9
] IKoninklijke Sterrenwacht van België, Ringlaan 3, B-1180 Brussels, Belgium
[10
] European Southern Observatory, Ave. Alonso de Cordova 3107, Vitacura, Casilla 19001,
Santiago, Chile
[11
] European Southern Observatory, Karl-Schwarzschild-Str 2, D-85748 Garching bei München,
Germany
[12
] Lennard-Jones Laboratories, Keele University, Keele, Newcastle-under-Lyme, Staffordshire
ST5 5BG, UK
[13
] Observatorio Astronómico, Universidad Nacional de Córdoba, Laprida 854, 5000 Córdoba,
Argentina
[14
] Consejo Nacional de Investigaciones Científicas y Técnicas, Av. Rivadavia 1917, C1033AAJ
Buenos Aires, Argentina