Demographics of Sloan Digital Sky Survey galaxies along the Hubble sequence

Abstract

We present the statistical properties of a volume-limited sample of 7,429 nearby (z = 0.033 - 0.044) galaxies from the Sloan Digital Sky Survey Data Release 7. Our database includes morphology distribution as well as the structural and spectroscopic properties of each morphology type based on the recent re-measurements of spectral line strengths by Oh and collaborators (2011). Our database does not include galaxies that are apparently smaller and flatter, because morphology classification of them turned out to be difficult. Our statistics confirmed the up-to-date knowledge of galaxy populations, e.g., correlations between morphology and line strengths as well as the derived ages, etc. We hope that this database will be useful as a reference.

Accepted for publication in AJ. 20 pages, 21 figures, 6 tables. 1 machine-readable table to appear online

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Cited by in corpus (7)

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• Demographics of Isolated Galaxies Along the Hubble Sequence
• Morphology of Seyfert Galaxies
• Luminosity of ultrahigh energy cosmic rays and bounds on magnetic luminosity of radio-loud active galactic nuclei
• Gravitational interaction signatures in isolated galaxy triplet systems: a photometric analysis