Based on data from the FEROS spectrograph at the 2.2-m ESO/MPI
telescope (observing run ID 074.C-0135), at the La Silla Observatory, ESO (Chile), and the UVES
spectrograph at VLT/UT2 Kueyen telescope (observing run ID 074.C-0134), at the Paranal Observatory, ESO (Chile), and on observations made with the SARG spectrograph at
3.5-m TNG, operated by the Fundación Galileo Galilei of the INAF,
and with the UES spectrograph at the 4-m William Hershel Telescope
(WHT), operated by the Isaac Newton Group, both at the Spanish
Observatorio del Roque de los Muchachos
of the Instituto de Astrofisica de Canarias.
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