Calibration of LAMOST spectral analysis

Details Calibration of LAMOST spectral analysis Calibration of LAMOST spectral analysis

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010spie.7740e..99w&link_type=abstract

Software and Cyberinfrastructure for Astronomy. Edited by Radziwill, Nicole M.; Bridger, Alan. Proceedings of the SPIE, Volume 7

Astronomy and Astrophysics

Astronomy

Scientific paper

The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) started its test observation in the past year (2009). The spectroscopic reduction and analysis software is avalible for the determination of spectral classifications, redshifts and the fundamental stellar atmospheric parameters (effective temperature, surface gravity, and metallicity). The analysis results show some systematic errors that need to be calibrated. We will present the results of these calibrations in this paper. Comparing with known objects observed by the Sloan Digital Sky Survey (SDSS), we can calibrate the redshifts of LAMOST galaxy spectra. Results from external spectral analysis software, the Sloan Extension for Galactic Exploration and Understanding (SEGUE) Stellar Parameter Pipeline (SSPP), will be applied to check the accuracy of the radial velocity (RV) measurement. Meanwhile, the atmospheric parameters of LAMOST stellar spectra are compared with known objects for calibrating our spectral analysis.

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