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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



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ID: 421488.0, MPI für Astronomie / Publikationen_mpia
On spectral classification and astrophysical parameter estimation for Galactic surveys
Authors:Re Fiorentin, Paola; Bailer-Jones, Coryn A. L.; Beers, Timothy C.; Zwitter, Tomaz
Language:English
Publisher:AIP
Place of Publication:Melville, New York
Date of Publication (YYYY-MM-DD):2008
Title of Proceedings:Classification and Discovery in Large Astronomical Surveys
Start Page:76
End Page:82
Title of Series:AIP conference proceedings
Volume (in Series):1082
Name of Conference/Meeting:American Institute of Physics Conference Series
Review Status:not specified
Audience:Experts Only
Abstract / Description:We present several strategies that are being developed in order to classify and parameterize individual stars observed by Galactic surveys, and illustrate some results obtained from spectra obtained by the RAdial Velocity Experiment (RAVE) and the Sloan Digital Sky Survey (SDSS/SEGUE). We demonstrate the efficiency of our models for discrete source classification and stellar atmospheric parameter estimation (effective temperature, surface gravity, and metallicity), which use supervised machine learning algorithms along with a principal component analysis front-end compression phase that also enables knowledge discovery.
Free Keywords:spectral analysers; astrophysical radiation mechanisms; galactic nuclei; astronomical atlases
Comment of the Author/Creator:Date: 2008, December 1, 2008
External Publication Status:published
Document Type:Conference-Paper
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL:http://adsabs.harvard.edu/abs/2008AIPC.1082...76R [ID No:1]
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