Figure 1 from MAPPING THE SIMILARITIES OF SPECTRA: GLOBAL AND LOCALLY-BIASED APPROACHES TO SDSS GALAXIES

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MAPPING THE SIMILARITIES OF SPECTRA: GLOBAL AND LOCALLY-BIASED APPROACHES TO SDSS GALAXIES

Authors: David Lawlor, Tamás Budavári, and Michael W. Mahoney

2016 The Astrophysical Journal 833 26.

Provider: AAS Journals

Caption: Figure 1.

PCA provides a powerful compression for the Main Galaxy Sample of the SDSS Data Release 7. Every galaxy is summarized by a point in a low-dimensional space spanned by the eigenvectors. Here, we show the the mixing angles θ and ϕ of the first three eigencoefficients.

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