1. Departamento de Física, Universidade Federal de Santa Maria, CCNE, 97105-900 Santa Maria, RS, Brazil
2. Laboratório Nacional de Astrofísica - Rua dos Estados Unidos 154, Bairro das Nações, CEP 37504-364 Itajubá, MG, Brazil
3. Instituto de Astrofísica de Canarias, C/Vía Láctea s/n, E-38205 La Laguna, Tenerife, Spain
4. Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, People’s Republic of China
5. Department of Astronomy, School of Physics, Peking University, Beijing 100871, People’s Republic of China
6. Instituto de Física, Universidade Federal do Rio Grande do Sul, CP 15051, Porto Alegre 91501-970, RS, Brazil
7. Gemini Observatory, Northern Operations Center, 670 North A’ohoku Place, Hilo, HI 96720, USA
8. Department of Plant & Soil Science, University of Vermont, Burlington, VT 05405, USA
9. NAT-Universidade Cruzeiro do Sul, Rua Galvão Bueno, 868, 01506-000 São Paulo, SP, Brazil
10. Canada–France–Hawaii Telescope, 65-1238 Mamalahoa Highway, Kamuela, HI 96743, USA
11. STFC UK Astronomy Technology Centre, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, UK