^1,2J. Licandro, ^1,2,3M. Popescu, ^1,2J. de León, ^1,2D. Morate, ^4,1,2O. Vaduvescu,⁵ M. De Prá, ⁶Victor Ali-Laoga
Astronomy & Astrophysics 618, A170 Link to Article [https://doi.org/10.1051/0004-6361/201832853]
¹Instituto de Astrofísica de Canarias (IAC), CVía Láctea sn, 38205 La Laguna, Spain
²Departamento de Astrofísica, Universidad de La Laguna, 38206, La Laguna, Tenerife, Spain
³Astronomical Institute of the Romanian Academy, 5 Cuţitul de Argint, 040557 Bucharest, Romania
⁴Isaac Newton Group of Telescopes, Apto. 321, Santa Cruz de la Palma, Canary Islands, Spain
⁵Departamento de Astrofísica, Observatório Nacional, 20921-400, Rio de Janeiro Brazil
⁶Max-Planck-Institut für extraterrestrische Physik (MPE), Giessenbachstrasse 1, 85748 Garching, Germany

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