267 citations · 267 across the 2 of their papers we have counts for
2 papers
astro-ph2004★ 267 cited
Spectral Classification of Quasars in the Sloan Digital Sky Survey: Eigenspectra; Redshift and Luminosity Effects
C. W. Yip, A. J. Connolly, D. E. Vanden Berk +10
We study 16,707 quasar spectra from the SDSS using the Karhunen-Loève (KL) transform (or Principal Component Analysis, PCA). The quasar eigenspectra of the full catalog reveal the…
astro-ph2004
Eigenspectra of the SDSS DR1 quasars
Ching-Wa Yip, Andrew Connolly, Daniel Vanden Berk +4
We construct eigenspectra from the DR1 quasars in the SDSS using the Karhunen-Loève (KL) transform (or Principal Component Analysis, PCA) in different redshift and luminosity bins.…