J/ApJS/164/334 ACS Virgo Cluster Survey. VI (Ferrarese+, 2006)
The ACS Virgo cluster survey.
VI. Isophotal analysis and the structure of early-type galaxies.
Ferrarese L., Cote P., Jordan A., Peng E.W., Blakeslee J.P., Piatek S.,
Mei S., Merritt D., Milosavljevic M., Tonry J.L., West M.J.
<Astrophys. J. Suppl. Ser., 164, 334-434 (2006)>
=2006ApJS..164..334F 2006ApJS..164..334F
ADC_Keywords: Clusters, galaxy ; Galaxies, photometry ; Morphology
Keywords: dust, extinction - galaxies: clusters: individual (Virgo) -
galaxies: ISM - galaxies: elliptical and lenticular, cD -
galaxies: nuclei
Abstract:
We present a detailed analysis of the morphology, isophotal
parameters, and surface brightness profiles for 100 early-type
members of the Virgo Cluster, from dwarfs (MB=-15.1mag) to giants
(MB=-21.8mag), imaged in the g and z passbands using the Advanced
Camera for Surveys (ACS) on board the Hubble Space Telescope.
Description:
All ACS Virgo Cluster Survey (ACSVCS) observations were carried out
with the Wide Field Channel (WFC) of the HST Advanced Camera for
Surveys (ACS) between 2002 December 25 and 2003 December 28.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 109 100 Global morphological properties of program galaxies
table2.dat 165 100 Morphological peculiarities
table3.dat 99 98 Best fit parameters to the luminosity profile
for program galaxies
table4.dat 164 98 Global structural parameters for program galaxies
notes.dat 77 600 Notes on individual galaxies
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See also:
J/AJ/90/1681 : The Virgo Cluster Catalog (VCC) (Binggeli+, 1985)
J/ApJS/153/223 : ACS Virgo Cluster Survey. I. (Cote+, 2004)
J/ApJS/154/509 : ACS Virgo Cluster Survey. II (Jordan+, 2004)
J/ApJ/613/279 : ACS Virgo Cluster Survey. III. M87 (Jordan+, 2004)
J/ApJS/164/334 : ACS Virgo Cluster Survey. VI. (Ferrarese+, 2006)
J/ApJS/171/101 : ACS Virgo cluster Survey. XII. (Jordan+, 2007)
J/ApJ/655/144 : ACS Virgo Cluster Survey. XIII. (Mei+, 2007)
J/ApJ/681/197 : ACS Virgo Cluster Survey. XV (Peng+, 2008)
J/ApJS/180/54 : ACS Virgo Cluster Survey. XVI. (Jordan+, 2009)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- ACSVCS Running source identification number (G1)
5- 8 I4 --- VCC Virgo Cluster Catalog identification number (G2)
10- 11 I2 h RAh NED Hour of Right Ascension (J2000)
13- 14 I2 min RAm NED Minute of Right Ascension (J2000)
16- 20 F5.2 s RAs NED Second of Right Ascension (J2000)
22 A1 --- DE- NED Sign of the Declination (J2000)
23- 24 I2 deg DEd NED Degree of Declination (J2000)
26- 27 I2 arcmin DEm NED Arcminute of Declination (J2000)
29- 32 F4.1 arcsec DEs NED Arcsecond of Declination (J2000)
34- 38 F5.2 mag BTmag The VCC BT plate magnitude (1)
40- 44 F5.2 mag Jmag ? 2MASS J band isophotal magnitude (1)
46- 49 F4.2 mag e_Jmag ? Error in Jmag
51- 55 F5.2 mag Hmag ? 2MASS H band isophotal magnitude (1)
57- 60 F4.2 mag e_Hmag ? Error in Hmag
62- 66 F5.2 mag Ksmag ? 2MASS Ks band isophotal magnitude (1)
68- 71 F4.2 mag e_Ksmag ? Error in Ksmag
73- 77 F5.3 mag E(B-V) The (B-V) color excess (2)
79- 82 I4 km/s Vsys NED heliocentric systemic velocity
84- 85 I2 km/s e_Vsys Error in Vsys
87- 98 A12 --- MType The VCC morphological type
100-109 A10 --- OName Other name(s)
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Note (1): Not extinction corrected.
Note (2): From the reddening maps of Schlegel, Finkbeiner, & Davis
(1998ApJ...500..525S 1998ApJ...500..525S).
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- ACSVCS Running source identification number (G1)
5- 8 I4 --- VCC Virgo Cluster Catalog identification (G2)
number (Cat. J/AJ/90/1681)
10- 12 A3 --- Dust [C1-4: ] Dust detection (1)
14 A1 --- SD [Y] Small-scale disk (2)
16- 17 A2 --- LD [Y: ] Large-scale disk (2)
19- 20 A2 --- N Presence of a nucleus (3)
22- 23 A2 --- B [Y: ] Existence of a bar
25-165 A141 --- Com ? Comments (4)
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Note (1): The presence of dust is classified according to the dust
morphology, and is defined as follows:
C1 = faint wisps and patches,
C2 = high-extinction irregular dust lanes,
C3 = large, patchy dust disks,
C4 = small, regular featureless dust disks.
Note (2): A disk is defined as having "small scale" if it does not dominate
the galaxy morphology at large radii, vice versa for a large-scale
disk. Both a large and small-scale disk can be detected in the same
galaxies when the two disks have different scale lengths or surface
brightnesses and therefore appear as distinct from inspection of the
images, or in their effect on the surface brightness profile.
Note (3): In the case of the column indicating whether a nucleus is present,
we adopt the terminology used in Paper VIII (2006ApJS..165...57C 2006ApJS..165...57C):
0 = the presence of a nucleus could not be investigated either
because of the presence of significant dust contamination,
or nonthermal emission from an active nucleus;
II = galaxies that are non-nucleated;
Ia = galaxies that are certainly nucleated;
Ib = galaxies that are certainly nucleated,
but the nucleus is too faint to derive a reliable fit;
Ic = likely nucleated galaxies;
Id = possibly nucleated galaxies;
Ie = the nucleus is offset from the isophotal center.
Note (4):
An "ITD" in the last column stands for "inner truncated disk".
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- ACSVCS Running source identification number (G1)
5- 8 I4 --- VCC Virgo Cluster Catalog identification (G2)
10 A1 --- f_ACSVCS [1] Unreliable values (G3)
12- 13 A2 --- Mod Sersic (S) or core-Sersic (cS)
best fitting model
15- 19 F5.2 mag/arcsec2 mug The g band surface brightness at reg (3)
21- 25 F5.3 --- gam.g ? The g band slope of the inner power law
for galaxies best fit by a cS Model (4)
27- 32 F6.3 --- n.g The g band Sersic model index (4)
34- 39 F6.2 arcsec reg The g band effective radius (4)
41- 44 F4.2 arcsec rbg ? The g band break radius (4)
46- 50 F5.3 arcsec rhg ? The g band half-light radius of the
nuclear component
52- 56 F5.2 mag gmag ? Total g band nuclear King model magnitude
58- 62 F5.2 mag/arcsec2 muz The z band surface brightness at rez (3)
64- 68 F5.3 --- gam.z ? The z band slope of the inner power law
for galaxies best fit by a cS Model (4)
70- 75 F6.3 --- n.z The z band Sersic model index (4)
77- 82 F6.2 arcsec rez The z band effective radius (4)
84- 87 F4.2 arcsec rbz ? The z band break radius (4)
89- 93 F5.3 arcsec rhz ? The z band half-light radius of the
nuclear component
95- 99 F5.2 mag zmag ? Total z band nuclear King model magnitude
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Note (3): Not extinction corrected.
Note (4): See equations 7 and 8 in the journal paper.
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- ACSVCS Running source identification number (G1)
5- 8 I4 --- VCC Virgo Cluster Catalog identification
number (G2)
10 A1 --- f_ACSVCS [1] Unreliable values (G3)
12- 13 I2 h RAh Hour of Right Ascension (J2000) (2)
15- 16 I2 min RAm Minute of Right Ascension (J2000) (2)
18- 22 F5.2 s RAs Second of Right Ascension (J2000) (2)
24 A1 --- DE- Sign of the Declination (J2000)(2)
25- 26 I2 deg DEd Degree of Declination (J2000) (2)
28- 29 I2 arcmin DEm Arcminute of Declination (J2000) (2)
31- 36 F6.3 arcsec DEs Arcsecond of Declination (J2000) (2)
38- 43 F6.2 arcsec reg.g The g band effective radius (3)
45- 49 F5.2 mag/arcsec2 mug.g ?=99.99 g band surface brightness at reg (4)
51- 55 F5.2 mag/arcsec2 Mean g band surface brightness
within reg.g (5)
57- 60 F4.2 --- ? Mean g band ellipticity
62- 65 F4.2 --- e_ ? Uncertainty in
67- 72 F6.3 --- <B4g> ? Mean g band B4 coefficient (8)
74- 78 F5.3 --- e_<B4g> ? Uncertainty in <B4g>
80- 84 F5.1 deg <PAg> ? Mean g band major axis position angle (6)
86- 89 F4.1 deg e_<PAg> ? Uncertainty in <PAg>
91- 95 F5.2 mag gmag.g The g band magnitude (7)
97-100 F4.2 mag g-z The (g-z) color index (7)
102-105 F4.2 mag e_g-z Uncertainty in g-z
107-112 F6.2 arcsec rez.g The z band effective radius (3)
114-118 F5.2 mag/arcsec2 muz.g ?=99.99 z band surface brightness at rez (4)
120-124 F5.2 mag/arcsec2 Mean g band surface brightness
within rez.g (5)
126-129 F4.2 --- ? Mean z band ellipticity
131-134 F4.2 --- e_ ? Uncertainty in
136-141 F6.3 --- <B4z> ? Mean z band B4 coefficient (8)
143-147 F5.3 --- e_<B4z> ? Uncertainty in <B4z>
149-153 F5.1 deg <PAz> ? Mean z band major axis position angle (6)
155-158 F4.1 deg e_<PAz> ? Uncertainty in <PAz>
160-164 F5.2 mag zmag.g The z band magnitude (7)
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Note (2): Measured directly from the images (to be compared to the values
given in Table 1).
Note (3): Coincides with the values listed in Table 3 for galaxies best fit
by a Sersic model, but is slightly larger for the galaxies best fit by
a core-Sersic model (for which Table 3 lists the re of the Sersic
model fitting the outer parts).
Note (4): Measured directly from the images when possible.
Not extinction corrected.
Note (5): Integrated from the best fitting model. Not extinction corrected.
Note (6): Measured between 1" and re. Average values are not listed if less
than four points are available to compute the mean and standard deviation.
Note (7): The magnitudes (not extinction corrected) exclude the nucleus and
are obtained by integrating the best fit profile to infinity. The
colors are measured directly from the surface brightness profile for
1"<r<re. To avoid errors associated with the background subtractions,
surface brightness values 1mag below the sky or fainter are excluded.
Note (8): Coefficient of the Fourier expansion (φ = azimuth):
I(φ) = Io + {Sum}k[Ak.sin(kφ)+Bk.cos(kφ)]
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Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- ACSVCS Running source identification number (G1)
5- 77 A73 --- Note Note
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Global Notes:
Note (G1): Running source identification number is ACSVCS NNN in Simbad.
Note (G2): Virgo Cluster Catalog (Cat. J/AJ/90/1681) identification number
is VCC NNN in Simbad.
Note (G3): a "1" indicates that, based on the dIrr/dE nature of this
object, the irregular profile shape, and the large discrepancy between
the values of re measured in the two filters, re and all integrated
quantities for this galaxy are deemed unreliable.
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History:
From electronic version of the journal
References:
Cote et al., Paper I 2004ApJS..153..223C 2004ApJS..153..223C, Cat. J/ApJS/153/223
Jordan et al., Paper II 2004ApJS..154..509J 2004ApJS..154..509J, Cat. J/ApJS/154/509
Jordan et al., Paper III 2004ApJ...613..279J 2004ApJ...613..279J, Cat. J/ApJ/613/279
Mei et al. Paper IV 2005ApJS..156..113M 2005ApJS..156..113M
Hasegan et al., Paper VII 2005ApJ...627..203H 2005ApJ...627..203H
Cote et al., Paper VIII 2006ApJS..165...57C 2006ApJS..165...57C
Peng et al., Paper IX 2006ApJ...639...95P 2006ApJ...639...95P
Jordan et al., Paper X 2005ApJ...634.1002J 2005ApJ...634.1002J
Peng et al., Paper XI 2006ApJ...639..838P 2006ApJ...639..838P
Jordan et al., Paper XII 2007ApJS..171..101J 2007ApJS..171..101J, Cat. J/ApJS/171/101
Mei et al., Paper XIII 2007ApJ...655..144M 2007ApJ...655..144M, Cat. J/ApJ/655/144
Mieske et al., Paper XIV 2006ApJ...653..193M 2006ApJ...653..193M
Peng et al., Paper XV 2008ApJ...681..197P 2008ApJ...681..197P, Cat. J/ApJ/681/197
Jordan et al. Paper XVI 2009ApJS..180...54J 2009ApJS..180...54J, Cat. J/ApJS/180/54
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 27-Aug-2008