VizieR Online Data Catalog: Comparative modelling of cool giants spectra (Lebzelter+, 2012)
Abstract
Spectra representing four cool giant stars were made available to various groups and individuals working in the area of spectral synthesis, asking them to derive stellar parameters from the data provided. The results were discussed at a workshop in Vienna in 2010. Most of the major codes currently used in the astronomical community for analyses of stellar spectra were included in this experiment.
The files contain the spectra in the same form as they were made available to the experiment participants. The spectra for Star 1 and Star 2 are on the heliocentric wavelength scale (i.e. corrected for Earth motion, but not for stellar radial velocity). The spectra are normalized to the continuum by an automatic pipeline, which first divides the spectrum by a flat field response function and then removes the overall slope of the whole spectrum. These optical spectra also contain a number of telluric lines. The spectra for Star 3 and Star 4 are on the laboratory wavelength scale and the flux is normalized to the continuum. They do not contain telluric lines. Additional information which was provided to the experiment participants: ---------------------------------------------------------------- FileName Spectral resolution Signal-to-noise ratio ---------------------------------------------------------------- star1.dat 80000 463 at 871 nm star2.dat 80000 517 at 871 nm star3.dat 70000 125 star4.dat 70000 125 ---------------------------------------------------------------- (10 data files).- Publication:
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VizieR Online Data Catalog
- Pub Date:
- September 2012
- DOI:
- 10.26093/cds/vizier.35470108
- Bibcode:
- 2012yCat..35470108L
- Keywords:
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- Models: atmosphere;
- Stars: giant;
- Spectroscopy