CN column densities and excitation temperatures (Slyk+, 2008)

Astronomy and Astrophysics – Astronomy

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Stars: Nearby, Spectroscopy, Equivalent Widths

Scientific paper

The spectra, analysed in this project, were acquired using several instruments. * (i) FEROS echelle spectrograph fed with the 2.2-m telescope at ESO La Silla which allows resolution R=48000. (34 spectra) * (ii) UVES instrument attached to the ESO VLT Kueyen telescope (R=80000) available from the UVES Paranal Observatory Project - a public library of high-resolution stellar spectra (Bagnulo et al. 2003, The ESO Messenger, 114, 10), and the ESO archive. (21 spectra) * (iii) BOES - the echelle spectrograph installed at the 1.8-m telescope of Bohyunsan Optical Astronomy Observatory in South Korea working with three possible resolutions: R=30000, 45000 and 90000. (11 spectra) * (iv) MAESTRO - the coude echelle spectrometer fed by the 2-m telescope of the Observatory at the Peak Terskol (Northern Caucasus), with the resolution R=120000. (seven spectra) * (v) HARPS spectrograph attached to the ESO La Silla 3.6-m telescope, a fibre-fed high-resolution echelle spectrograph R=115000. (seven spectra) * (vi) Gecko spectrograph on the 3.6-m Canada-France-Hawaii Telescope (CFHT) (R=120000). (six spectra)
(6 data files).

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