Principal Component Analysis of SDSS Stellar Spectra

Details Principal Component Analysis of SDSS Stellar Spectra Principal Component Analysis of SDSS Stellar Spectra

2010-01-25

arxiv.org/abs/1001.4340v2

Astronomical Journal, 139 (2010) 1261

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

25 pages, 15 figures, accepted by the Astronomical Journal

Scientific paper

10.1088/0004-6256/139/3/1261

We apply Principal Component Analysis (PCA) to ~100,000 stellar spectra obtained by the Sloan Digital Sky Survey (SDSS). In order to avoid strong non-linear variation of spectra with effective temperature, the sample is binned into 0.02 mag wide intervals of the g-r color (-0.20

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