J/MNRAS/411/2439 Coma Treasury Survey. Structural parameters (Hoyos+, 2011)
The HST/ACS Coma cluster survey.
III. Structural parameters of galaxies using single Sersic fits.
Hoyos C., Den Brok M., Kleijn G.V., Carter D., Balcells M., Guzman R.,
Peletier R., Ferguson H.C., Goudfrooij P., Graham A.W., Hammer D.,
Karick A.M., Lucey J.R., Matkovic A., Merritt D., Mouhcine M., Valentijn E.
<Mon. Not. R. Astron. Soc., 411, 2439-2460 (2011)>
=2011MNRAS.411.2439H 2011MNRAS.411.2439H (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Galaxies, photometry ; Morphology
Keywords: galaxies: clusters: individual: Coma - galaxies: dwarf -
galaxies: elliptical and lenticular, cD - galaxies: evolution -
galaxies: fundamental parameters
Abstract:
We present a catalogue of structural parameters for 8814 galaxies in
the 25 fields of the Hubble Space Telescope/ACS Coma Treasury Survey.
Parameters from Sersic fits to the two-dimensional surface brightness
distributions are given for all galaxies from our published Coma
photometric catalogue with mean effective surface brightness brighter
than 26.0mag/arcsec2 and brighter than 24.5mag (equivalent to
absolute magnitude -10.5), as given by the fits, all in F814W(AB). The
sample comprises a mixture of Coma members and background objects; 424
galaxies have redshifts and of these 163 are confirmed members. The
fits were carried out using both the GIM2D and GALFIT codes.
Description:
The observations (program GO 10861) were taken between 2006 November
and 2007 January with the HST/ACS camera (2x4096x2048 pixels,
0.05arcsec/pixel, 3-arcsec interchip gap).
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
catalog.dat 274 8966 Structural parameter catalogue
--------------------------------------------------------------------------------
See also:
VII/42 : GMP catalogue: galaxies in the Coma cluster (Godwin+ 1983)
J/A+AS/111/265 : Velocities in Coma cluster (Biviano+ 1995)
J/A+AS/122/409 : Photometric catalogue of Coma (Lobo+, 1997)
J/AJ/121/2331 : SDSS redshifts in the Coma cluster (Castander+, 2001)
J/ApJS/137/279 : Spectroscopic Survey in Coma (Mobasher+, 2001)
J/AJ/124/3061 : uz,vz,bz,yz photometry in Coma cluster (Odell+, 2002)
J/ApJ/602/664 : Morphology of galaxies in Coma cluster core (Gutierrez+, 2004)
J/A+A/419/47 : XMM X-ray fluxes in Coma cluster (Finoguenov+, 2004)
J/A+A/451/1159 : BVRI imaging of the Coma cluster (Adami+, 2006)
J/ApJS/169/225 : Photometry of galaxies in the Coma cluster (Eisenhardt+, 2007)
J/A+A/490/923 : Galaxies morphology in Coma cluster direction (Michard+, 2008)
J/ApJS/190/43 : Deep GALEX observations of the Coma cluster (Hammer+, 2010)
Byte-by-byte Description of file: catalog.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 A5 --- --- [COMAi]
6- 25 A20 --- COMAi Name of source, as it appears in Hammer
et al. 2010ApJS..191..143H 2010ApJS..191..143H (Paper II),
27- 38 F12.8 deg RAdeg Right ascension (J2000) of source
40- 50 F11.8 deg DEdeg Declination (J2000) of source
52- 58 F7.3 mag F814W ?=-99. Automatic F814W magnitude from
SEXTRACTOR catalogue, corrected according
to the prescription discussed in Paper II
(MAGAUTOCORR)
60- 65 F6.3 mag F814WGF ?=- F814W apparent magnitude of
GALFIT model
No k- or extinction correction applied
67- 71 F5.3 mag e_F814WGF ?=0 Error on F814W, as calculated from the
simulations described in the text
73- 80 F8.3 pix ReGF ?=- Effective radius, in pixels from GALFIT
model
82- 87 F6.3 pix e_ReGF Error on Re, as calculated from the
simulations described in the text
89- 94 F6.3 --- nGF ?=- Sersic index from GALFIT model
96-100 F5.3 --- e_nGF Error on n, as calculated from the
simulations described in the text
102-107 F6.3 mag/arcsec2 SuBrGF ?=- Surface brightness at Re calculated
from the GALFIT model
109-114 F6.3 mag/arcsec2 SuBrmGF ?=- Mean surface brightness within Re
calculated from the GALFIT model
116-123 F8.3 --- ellGF ?=- Ellipticity of model (1-b/a)
Errors as given by GALFIT
125-130 F6.3 --- e_ellGF ?=- Formal error on ellipticity from GALFIT
132-138 F7.3 deg PAGF [-180/180]?=- Position Angle of source_GF
Errors as given by GALFIT
140-146 F7.3 deg e_PAGF ?=- Formal error on Position Angle of
source from GALFIT
148-155 F8.5 --- RFFGF ?=- Residual Flux Fraction diagnostic,
defined in the text, derived from the
residuals from the GALFIT model (1)
157-169 F13.5 --- EVIGF ?=- Excess Variance Index, derived from the
residuals from the GALFIT model (1)
171-176 F6.3 mag F814WG2D ?=- F814W apparent magnitude of GIM2D model
No k- or extinction correction applied
178-182 F5.3 mag e_F814WG2D Error on F814W, as calculated from the
simulations described in the text
184-190 F7.3 pix ReG2D ?=- Effective radius, in pixels from GIM2D
model
192-196 F5.3 pix e_ReG2D Error on Re, as calculated from the
simulations described in the text
198-203 F6.3 --- nG2D ?=- Sersic index from GIM2D model
205-209 F5.3 --- e_nG2D Error on n, as calculated from the
simulations described in the text
211-216 F6.3 mag/arcsec2 SuBrG2D ?=- Surface brightness at Re in the GIM2D
model
218-223 F6.3 mag/arcsec2 SuBrmG2D ?=- Mean surface brightness within R
calculated from the GIM2D model
225-229 F5.3 --- ellG2D ?=- Ellipticity of model (1-b/a)
Errors as yielded by GIM2D
231-235 F5.3 --- e_ellG2D ?=- Formal error on ellipticity from
GIM2D
237-244 F8.3 deg PAG2D [-180/180]?=- Position Angle of source
Errors as given by GIM2D
246-251 F6.3 deg e_PAG2D ?=- Formal error on from GIM2D
253-260 F8.5 --- RFFG2D ?=- Residual Flux Fraction diagnostic,
defined in the text, derived from the
residuals from the GIM2D model (1)
262-274 F13.5 --- EVIG2D ?=- Excess Variance Index, derived from the
residuals from the GIM2D model (1)
--------------------------------------------------------------------------------
Note (1):
* RFF = (∑i|Resi|-0.8σimage)/FLUX_ISO,
where the summation is over all pixels within the ISOAREA of that
particular object, |Resi| is the absolute value of residual image
obtained by subtracting the best-fitting model from the real galaxy
image, and FLUX_ISO is the total flux within the ISOAREA, which can be
taken from SExtractor.
* The image variance is obtained from the usual CCD equation as
σimage2=σbkg2 +S/g, where S is the value of the
model for that pixel and g is the effective gain, which can be found
from the SExtractor parameters for the particular image.
* EVI=1/3[(σR2/<σimage2>)-1],
where σRis the root mean square of the residuals within the
ISOAREA, and <σimage2> is the mean value of the square of
the noise within the same area.
--------------------------------------------------------------------------------
History:
Copied at http://archive.stsci.edu/pub/hlsp/coma/release2.2/
References:
Carter et al., Paper I 2008ApJS..176..424C 2008ApJS..176..424C
Hammer et al., Paper II 2010ApJS..191..143H 2010ApJS..191..143H
(End) Patricia Vannier [CDS] 11-Oct-2011