Fig. 6 from Distributions of Galaxy Spectral Types in the Sloan Digital Sky Survey

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Distributions of Galaxy Spectral Types in the Sloan Digital Sky Survey

Authors: C. W. Yip, A. J. Connolly, A. S. Szalay, T. Budavári, M. SubbaRao, J. A. Frieman, R. C. Nichol, A. M. Hopkins, D. G. York, S. Okamura, J. Brinkmann, I. Csabai, A. R. Thakar, M. Fukugita, and Ž. Ivezić

Yip et al. 2004 The Astronomical Journal 128 585.

Provider: AAS Journals

Caption: Fig. 6.

Eigencoefficients a₂ vs. a₁ of our sample (≈170,000 galaxy spectra). More than 90% of the whole galaxy population is located on this main locus. The trend is similar to that in previous works (Connolly et al. 1995), with red galaxies having larger, positive a₂ values and blue galaxies having smaller or negative values.

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