Figure 2 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 2.

BPT diagrams of line ratios can also be thought of as a particular data-driven embedding, which provide insight not available from, but complementary to those provided by PCA.

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