Automated stellar spectra parameterisation for Gaia-RVS

Details Automated stellar spectra parameterisation for Gaia-RVS Automated stellar spectra parameterisation for Gaia-RVS

Feb 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012epjwc..1909010k&link_type=abstract

Assembling the Puzzle of the Milky Way, Le Grand-Bornand, France, Edited by C. Reylé; A. Robin; M. Schultheis; EPJ Web of Confer

Physics

Scientific paper

Degeneracies in the stellar atmospheric parameters can pollute large spectroscopic surveys, introducing possible biases in the derived distances, kinematics and chemical abundances. We focus at the wavelength range shared by RAVE, the RVS of Gaia and the ESO-FLAMES/GIRAFFE spectrograph setups LR8 and HR21. Based on the algorithms DEGAS and MATISSE, trained on a grid of synthetic spectra, we propose a pipeline in order to derive the atmospheric parameters.

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