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 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, http://132.248.1.210.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 52 512 Detailed morphology for the CIG∩SDSS
sample (Vr>1000km/s)
table3.dat 44 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
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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)
http://www.sdss.org/ : SDSS Home Page
Byte-by-byte Description of file: table[23].dat
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Bytes Format Units Label Explanations
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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)
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Byte-by-byte Description of file: table4.dat
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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
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 20-May-2011