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VI/134 Grids of ATLAS9 Model Atmospheres and MOOG spectra (Kirby, 2011)
The following files can be converted to FITS (extension .fit or fit.gz)
params.dat
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Grids of ATLAS9 Model Atmospheres and MOOG Synthetic Spectra
Kirby E.N.
<Publ. Astron. Soc. Pacific (2011)>
=2011yCat.6134....0K
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ADC_Keywords: Models, atmosphere; Spectroscopy
Keywords: stars: atmospheres
Abstract:
A grid of ATLAS9 model atmospheres has been computed, spanning Teff
in 3500--8000K, log.g in 0.0--5.0, [Fe/H] in -4.0--0.0, [alpha/Fe]
in -0.08--1.2. These parameters are appropriate for stars in the red
giant branch, subgiants, and the lower main sequence. The main
difference from a previous, similar grid (Castelli & Kurucz 2003,
"Modelling of Stellar Atmospheres", 210, astro-ph/0405087) is the
range of [alpha/Fe] values. A grid of synthetic spectra, calculated
from the model atmospheres, is also presented. The fluxes are computed
every 0.02AA from 630nm to 910nm. The microturbulent velocity
is given by a relation to the surface gravity. This relation is
appropriate for giants, but not for subgiants or dwarfs. Therefore,
caution is urged for the synthetic spectra with log.g>3.5.