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The Sloan Digital Sky Survey (SDSS) has released the latest data (DR13) which is the first data release for the MaNGA survey. The massive spectra produced by SDSS is available for large sample research and also data source of rare and special objects like white dwarf main-sequence star (WDMS). Many techniques have been proposed to solve SDSS automatic classification problems with massive spectra and...
In the present paper, the effects of signal-to-noise ratios (SNRs) on the measurement of 19 atomic Lick indices are analyzed. The stellar spectra of the large sky area multi-object fiber spectroscopic telescope (LAMOST) are selected under different conditions, which allows investigating the impact of SNRs on the accuracy and precision of the measurement of Lick/LAMOST indices. The experiment result...
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