A CATALOG OF DETAILED VISUAL MORPHOLOGICAL CLASSIFICATIONS FOR 14,034 GALAXIES IN THE SLOAN DIGITAL SKY SURVEY

By P. Nair, R. Abraham. 2010

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We present a catalog of detailed visual classifications for 14,034 galaxies in the Sloan Digital Sky Survey (SDSS) Data Release 4 (DR4). Our sample includes nearly all spectroscopically targeted galaxies in the redshift range 0.01 < z < 0.1 down to an apparent extinction-corrected limit of g < 16 mag. In addition to T-Types, we record the existence of bars, rings, lenses, tails, warps, dust lanes, arm flocculence, and multiplicity. This sample defines a comprehensive local galaxy sample which we will use in future papers to study low-redshift morphology. It will also prove useful for calibrating automated galaxy classification algorithms. In this paper, we describe the classification methodology used, detail the systematics and biases of our sample, and summarize the overall statistical properties of the sample, noting the most obvious trends that are relevant for general comparisons of our catalog with previously published work.

Subfields: Astronomy and Astrophysics, Instrumentation, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/ac9773c9d2e1247ff897d06fe622875e793aef96

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Citations in the corpus

The massive end of the luminosity and stellar mass functions: Dependence on the fit to the light profile (2013, result): “We have compared these estimates with those of Nair & Abraham (2010), who used the T-Type classification using the modified RC3 (Third Reference Catalogue of Bright Galaxies) classifiers.”
The impact of gas inflows on star formation rates and metallicities in barred galaxies (2011, methodology): “See Nair & Abraham (2010a) for extensive discussion of their classification process and comparison with other catalogues.”
Galaxy Zoo 2: detailed morphological classifications for 304,122 galaxies from the Sloan Digital Sky Survey (2013, background): “• Galaxy Zoo 1 (Lintott et al. 2011): Citizen science • Nair & Abraham (2010) : Expert visual classification • EFIGI (Baillard et al. 2011) : Expert visual classification • Huertas-Company et al. (2011) : Automatic classification c© 2013 RAS, MNRAS 000, 1–29 GZ2 GZ1 HC11 NA10 EFIGI N % N % N % N…”
Galaxy Zoo:bars in disc galaxies (2010, background): “These results are consistent with previous visual studies of spiral galaxies (from the RC3 catalogue) as well as several recent studies (Giordano et al. 2010; Nair & Abraham 2010b).”
The Fifteenth Data Release of the Sloan Digital Sky Surveys: First Release of MaNGA-derived Quantities, Data Visualization Tools, and Stellar Library (2018, methodology): “The models were trained (making use of Galaxy Zoo morphologies, as well as morphologies from Nair & Abraham 2010) and tested on SDSS-DR7 images (Domı́nguez Sánchez et al. 2018).”
A catalogue of 2D photometric decompositions in the SDSS-DR7 spectroscopic main galaxy sample: preferred models and systematics (2014, methodology): “The work of Nair & Abraham (2010) gives a detailed visual morphological classification of a set of about 10 000 nearby galaxies.”
Galaxy Zoo 1: data release of morphological classifications for nearly 900 000 galaxies (2010, background): “Previous professional attempts (Fukugita et al. 2007; Nair & Abraham 2010) have been necessarily limited by the extraordinary effort required to classify even relativelysmall subsets of the SDSS; the largest, MOSES (Schawinski et al. 2007), included basic classifications of only 50,000 galaxies at…”
The formation of disc galaxies in a ΛCDM universe (2010, background): “At the stellar mass scale of the Milky Way (5 − 7× 1010 M⊙), only ∼ 25 per cent of galaxies are of Sb/Sbc type (Nair & Abraham 2010).”
THE GEMINI CLUSTER ASTROPHYSICS SPECTROSCOPIC SURVEY (GCLASS): THE ROLE OF ENVIRONMENT AND SELF-REGULATION IN GALAXY EVOLUTION AT z ∼ 1 (2011, background): “…2006; Thomas et al. 2005, 2010; Graves et al. 2009), more metal rich (e.g., Tremonti et al. 2004; Gallazzi et al. 2005, 2006; Nelan et al. 2005; Thomas et al. 2005, 2010; Graves et al. 2009) and more frequently having elliptical/S0 morphologies (e.g., Bamford et al. 2009; Nair & Abraham 2010).”
The EFIGI catalogue of 4458 nearby galaxies with detailed morphology (2011, methodology): “…to compare the distribution of morphological types in the EFIGI catalogue with that expected from a magnitude-limited sample, since setting a magnitude cut-off is the most common selection scheme in morphological follow-up studies of photometric surveys (Lintott et al. 2008; Nair & Abraham 2010).”
Revisiting the Hubble sequence in the SDSS DR7 spectroscopic sample: a publicly available Bayesian automated classification (2010, methodology): “Stellar masses are taken from the Nair & Abraham (2010) catalog, also taken from Kauffmann et al. (2003) estimates.”