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J/AJ/136/2115       SDSS/CIG galaxies classification   (Hernandez-Toledo+, 2008)

A morphological re-evaluation of galaxies in common from the Catalog of Isolated Galaxies and the Sloan Digital Sky Survey (DR6). Hernandez-Toledo H.M., Vazquez-Mata J.A., Martinez-Vazquez L.A., Avila-Reese V., Mendez-Hernandez H., Ortega-Esbri S., Miranda Nunez J.P. <Astron. J., 136, 2115-2135 (2008)> =2008AJ....136.2115H
ADC_Keywords: Galaxy catalogs ; Morphology Keywords: galaxies: elliptical and lenticular, cD - galaxies: fundamental parameters - galaxies: general - galaxies: photometry - galaxies: spiral - galaxies: structure Abstract: We present a re-evaluation of the optical morphology for 549 galaxies from the Catalog of Isolated Galaxies in the Northern Hemisphere (CIG) that are available in the Sloan Digital Sky Survey (SDSS; DR6). Both the high resolution and high dynamic range of the SDSS images and our semiautomatic image processing scheme allow for a major quality and uniform morphological analysis. The processing scheme includes (1) sky-subtracted, cleaned, and logarithmic scaled g-band images, (2) filtered-enhanced versions of the images in (1), and (3) the corresponding red-green-blue (RGB) composed images available in the SDSS database. We propose an empirical method to distinguishing between E, S0, and Sa candidates through an additional analysis of (4) the surface brightness, position angle, ellipticity and A4B4 coefficients of the Fourier series expansion profiles. An atlas of mosaics containing (1), (2), and (3) images for Sab-Sm/Irr types and (1), (2), (3), (4) images for E/S0/Sa types was produced and is available on the Web site, File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 52 512 Detailed morphology for the CIG∩SDSS sample (Vr>1000km/s) table3.dat 52 37 Detailed morphology for the CIG∩SDSS sample (Vr<1000km/s) table4.dat 45 454 CAS structural parameters (concentration, asymmetry and clumpiness) and their errors in the r band for the CIG∩SDSS sample
See also: VII/82 : Catalogue of Isolated Galaxies (Karachentseva+ 1986) VII/237 : HYPERLEDA. I. Catalog of galaxies (Paturel+, 2003) VII/238 : HYPERLEDA. II. Homogenized HI data (Paturel+, 2003) J/A+A/411/391 : AMIGA project. Revised positions for CIG galaxies (Leon+ 2003) J/A+A/449/937 : AMIGA. II. Morphological refinement (Sulentic+, 2006) : SDSS Home Page Byte-by-byte Description of file: table[23].dat
Bytes Format Units Label Explanations
1- 3 A3 --- --- [CIG] 5- 8 I4 --- CIG CIG (Cat. VII/82) catalog number 10- 13 A4 --- Leda HyperLeda (Cat. VII/237) Hubble type 15- 27 A13 --- Tned NED Hubble type 29- 38 A10 --- MType Hubble type from this work 40- 44 F5.2 --- Incl HyperLeda (Cat. VII/237) inclination to line-of-sight 46- 52 A7 --- S06 Sulentic et al. (2006, Cat. J/A+A/449/937) Hubble type (only in table2)
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 3 A3 --- --- [CIG] 5- 8 I4 --- CIG CIG (Cat. VII/82) catalog number 10- 14 F5.3 --- C SDSS r band concentration structural parameter 16- 20 F5.3 --- e_C Error in C 22- 26 F5.3 --- A SDSS r band asymmetry structural parameter 28- 32 F5.3 --- e_A Error in A 34- 39 F6.3 --- S SDSS r band clumpiness structural parameter 41- 45 F5.3 --- e_S Error in S
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 20-May-2011
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