VII/265 COSMOS Morphological Catalog (V1.1) (Tasca+ 2009)
COSMOS Morphological Catalog (V1.1)
Tasca L.A.M. et al.
<Astron. Astrophys. 503, 379 (2009)>
=2009A&A...503..379T 2009A&A...503..379T
=2011yCat.7265....0T 2011yCat.7265....0T
ADC_Keywords: Galaxy catalogs ; Morphology ;
Keywords:
Abstract:
The zCOSMOS field benefits of high-resolution imaging in the F814W
filter from the HST-ACS (Advanced Camera for Survey). We use standard
morphology classifiers, optimised for being robust against
band-shifting and surface brightness dimming, and a new, objective,
and automated method to convert morphological parameters into early,
spiral, and irregular types. We use about 10000 galaxies down to
I(AB)=22.5mag with a spectroscopic sampling rate of 33% to
characterise the environment of galaxies up to z∼1 from the 100kpc
scales of galaxy groups up to the 100Mpc scales of the cosmic web.
Description:
Objects in this catalog were selected from the 2005 release of the
ground-based photometry catalog, with the criterion that their I-band
(auto) magnitude had to be ≤ 23. The IDs, ra and dec provided in this
catalog correspond to those of that 2005 release.
The catalog was cleared from stars and point sources as well as from
all sources for which the morphology code did not run to completion.
Objects that could have been rejected in that way include: objects
close to the edge of the image, objects in dense tight groups and
objects situated in the proximity of a bright source.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
morpho.dat 80 237913 Morphological classifications of COSMOS galaxies
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See also:
II/284 : COSMOS Multi-Wavelength Photometry Catalog (Capak+, 2007)
J/ApJS/172/29 : XMM-Newton survey in COSMOS field. I. (Hasinger+, 2007)
J/ApJS/172/46 : VLA-COSMOS survey. II. (Schinnerer+, 2007)
J/ApJS/188/384 : The VLA-COSMOS survey. IV. (Schinnerer+, 2010)
J/ApJS/172/70 : zCOSMOS-bright catalog (Lilly+, 2007)
J/ApJS/172/182 : XMM Clusters of galaxies in COSMOS field (Finoguenov+ 2007)
J/ApJS/184/218 : The zCOSMOS 10k-bright spectroscopic sample (Lilly+, 2009)
Byte-by-byte Description of file: morpho.dat
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Bytes Format Units Label Explanations
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1- 7 I7 --- ID Identification number
9- 18 F10.6 deg RAdeg Right ascension J2000 (from ACS catalog,
Leauthaud et al. 2007, ApJS, 172, 219)
20- 29 F10.6 deg DEdeg Declination (J2000)
31- 36 F6.3 mag Imag Auto I-band magnitude
38- 43 F6.3 --- b/a [0,1]?=-9.999 Ratio of minor to major axis
45- 51 F7.3 pix Rh Half light radius
54- 59 F6.3 --- Gini Gini coefficient
61- 67 F7.3 --- conc Concentration index
69- 74 F6.3 --- asym Asymmetry index
76 I1 --- Mph1 [0/3] Morphological class by Tasca (1)
78 I1 --- Mph2 [0/3] Morphological class based on
conc and asym as used by Abraham 1996 (1)
80 I1 --- Mph3 [0/3] Morphological class based on support
vector machine by Huertas-Company 2008 (1)
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Note (1): Classes are
1=Early type, 2=Spirals, 3=Irregulars, 0=unclassified
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History:
From http://cencos.oamp.fr/hstcosmoscgi/index.pl (ACS MORPHO)
(End) Francois Ochsenbein [CDS] 05-Apr-2011