Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-10-30
Astron.J.136:2022-2049,2008
Astronomy and Astrophysics
Astrophysics
64 pages, 8 tables, 12 figures, submitted to the Astronomical Journal
Scientific paper
10.1088/0004-6256/136/5/2022
We describe the development and implementation of the SEGUE (Sloan Extension for Galactic Exploration and Understanding) Stellar Parameter Pipeline (SSPP). The SSPP derives, using multiple techniques, radial velocities and the fundamental stellar atmospheric parameters (effective temperature, surface gravity, and metallicity) for AFGK-type stars, based on medium-resolution spectroscopy and $ugriz$ photometry obtained during the course of the original Sloan Digital Sky Survey (SDSS-I) and its Galactic extension (SDSS-II/SEGUE). The SSPP also provides spectral classification for a much wider range of stars, including stars with temperatures outside of the window where atmospheric parameters can be estimated with the current approaches. This is Paper I in a series of papers on the SSPP; it provides an overview of the SSPP, and initial tests of its performance using multiple data sets. Random and systematic errors are critically examined for the current version of the SSPP, which has been used for the sixth public data release of the SDSS (DR-6).
Allende Prieto Carlos
Bailer-Jones Coryn A. L.
Beers Timothy C.
Covey Kevin R.
Koesterke Lars
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