Catalog of Visually Classified Galaxies in the Local ($z\sim 0.01$) Universe

Abstract

The morphological types of 5840 galaxies were classified by a visual inspection of color images using the Sloan Digital Sky Survey (SDSS) Data Release 7 (DR7) to produce a morphology catalog of a representative sample of local galaxies with $z<0.01$. The sample galaxies are almost complete for galaxies brighter than $r_{pet}=17.77$. Our classification system is basically the same as that of the Third Reference Catalog of Bright Galaxies with some simplification for giant galaxies. On the other hand, we distinguish fine features of dwarf elliptical-like galaxies to classify 5 subtypes: dwarf ellipticals (dE), blue-cored dwarf ellipticals (dE${}_{bc}$), dwarf spheroidals (dSph), blue dwarf ellipticals (dE${}_{blue}$), and dwarf lenticulars (dS0). In addition, we denote the presence of nucleation in dE, dSph, and dS0. Elliptical galaxies and lenticular galaxies contribute only $\sim 1.5\%$ and $\sim 4.9\%$ of the local galaxies, respectively, whereas spirals and irregulars contribute $\sim 32.1\%$ and $\sim 42.8\%$, respectively. The dE${}_{blue}$ galaxies, which are recently found populations of galaxies, contribute a significant fraction to the dwarf galaxies. There seems to be structural difference between dSph and dE galaxies. The dSph galaxies are fainter and bluer with shallower surface brightness gradient than dE galaxies. They also have lower fraction of galaxies with small axis ratios ($b/a\lesssim 0.4$) than dE galaxies. The mean projected distance to the nearest neighbor galaxy is $\sim 260$kpc. About $1\%$ of local galaxies have no neighbors with comparable luminosity within a projected distance of 2Mpc.

92 pages, 26 figures, published in ApJS

References in corpus (14)

• Cold gas accretion in galaxies
• Updated Nearby Galaxy Catalog
• The Observed properties of Dark Matter on small spatial scales
• The origin of dwarf ellipticals in the Virgo cluster
• Virgo cluster early-type dwarf galaxies with the Sloan Digital Sky Survey. III. Subpopulations: distributions, shapes, origins
• Virgo cluster early-type dwarf galaxies with the Sloan Digital Sky Survey. II. Early-type dwarfs with central star formation
• Discovery of New Dwarf Galaxies in the M81 Group
• Structural Properties of Central Galaxies in Groups and Clusters
• A robust morphological classification of high-redshift galaxies using support vector machines on seeing limited images. I Method description
• The Atlas3D project - XXIV. The intrinsic shape distribution of early-type galaxies
• Transformation of Morphology and Luminosity Classes of the SDSS Galaxies
• Frequency and properties of bars in cluster and field galaxies at intermediate redshifts
• Galactic Satellite Systems: Radial Distribution and Environment Dependence of Galaxy Morphology
• The properties of early-type galaxies in the Ursa Major cluster

Cited by in corpus (29)

• Structure and morphology of the MATLAS dwarf galaxies and their central nuclei
• Ultra diffuse galaxies in the MATLAS low-to-moderate density fields
• A spectroscopic study of MATLAS-2019 with MUSE: an ultra-diffuse galaxy with an excess of old globular clusters
• Bar Fraction in Early- and Late-type Spirals
• SDSS IV MaNGA: Visual Morphological and Statistical Characterization of the DR15 sample
• Implications for the origin of dwarf early-type galaxies: a detailed look at the isolated rotating dwarf early-type galaxy CG 611, with ramifications for the Fundamental Plane's (S_K)^2 kinematic scaling and the spin-ellipticity diagram
• Gemini NIFS survey of feeding and feedback in nearby Active Galaxies -- IV. Excitation
• A GMOS-N IFU study of the central H II region in the blue compact dwarf galaxy NGC 4449: Kinematics, Nebular Metallicity and Star-Formation
• A Comprehensive Examination of the Optical Morphologies of 719 Isolated Galaxies in the AMIGA Sample
• WALLABY Pilot Survey: the Potential Polar Ring Galaxies NGC~4632 and NGC~6156
• Bar Classification based on the Potential Map
• Morphology driven evolution of barred galaxies in OMEGAWINGS Clusters
• Hierarchical star formation in nearby galaxies
• SDSS-IV MaNGA: The MaNGA Dwarf Galaxy Sample
• Constraining the Milky Way's Ultraviolet to Infrared SED with Gaussian Process Regression
• New dwarf galaxy candidates in the sphere of influence of the Local Volume spiral galaxy NGC2683
• J-PLUS: Tools to identify compact planetary nebulae in the Javalambre and southern photometric local universe surveys
• Census of Gaseous Satellites around Local Spiral Galaxies
• Observational properties of a Type Ib Supernova MASTER OT J120451.50+265946.6 in NGC 4080
• The vertical structure of the spiral galaxy NGC 3501: first stages of the formation of a thin metal-rich disc
• The gas and stellar mass of low-redshift damped Lyman-$\alpha$ absorbers
• High-velocity feature as the indicator of the stellar population of Type Ia supernovae
• Extended hard X-ray emission in highly obscured AGN
• Searching in HI for Massive Low Surface Brightness Galaxies: Samples from HyperLeda and the UGC
• The discovery of blue-cored dwarf early-type galaxies in isolated environments
• Luminosity Distribution of Dwarf Elliptical-like Galaxies
• Star Formation Histories of Dwarf Spheroidal and Dwarf Elliptical Galaxies in the Local Universe
• Mass content of UGC 6446 and UGC 7524 through HI rotation curves: deriving the stellar discs from stellar population synthesis models
• GMRT H I mapping of mid-infrared bright Blue Compact Dwarf Galaxies W1016+3754 & W2326+0608