Medium-resolution Isaac Newton Telescope library of empirical spectra – II. The stellar atmospheric parameters
Özet
We present a homogeneous set of stellar atmospheric parameters (Teff, log g, [Fe/H]) for
MILES, a new spectral stellar library covering the range λλ 3525–7500 Å at 2.3 Å (FWHM)
spectral resolution. The library consists of 985 stars spanning a large range in atmospheric
parameters, from super-metal-rich, cool stars to hot, metal-poor stars. The spectral resolution,
spectral type coverage and number of stars represent a substantial improvement over previous
libraries used in population synthesis models. The atmospheric parameters that we present
here are the result of a previous, extensive compilation from the literature. In order to construct
a homogeneous data set of atmospheric parameters we have taken the sample of stars of
Soubiran, Katz & Cayrel, which has very well determined fundamental parameters, as the
standard reference system for our field stars, and have calibrated and bootstrapped the data
from other papers against it. The atmospheric parameters for our cluster stars have also been
revised and updated according to recent metallicity scales, colour–temperature relations and
improved set of isochrones.
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