Calibration of LAMOST Spectral Analysis

被引：4

作者：

Wang, F. F. ^{[1
]}

Luo, A. L. ^{[1
]}

Zhao, Y. H. ^{[1
]}

机构：

[1] Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China

来源：

SOFTWARE AND CYBERINFRASTRUCTURE FOR ASTRONOMY | 2010年 / 7740卷

关键词：

LAMOST; Spectroscopic; Redshifts; Calibration; DIGITAL SKY SURVEY; DATA RELEASE; REDUCTION;

D O I：

10.1117/12.857854

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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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页数：9

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