J/ApJS/197/22 The Carnegie-Irvine Galaxy Survey (GGS). II. (Li+, 2011)
The Carnegie-Irvine Galaxy Survey.
II. Isophotal analysis.
Li Z.-Y., Ho L.C., Barth A.J., Peng C.Y.
<Astrophys. J. Suppl. Ser., 197, 22 (2011)>
=2011ApJS..197...22L 2011ApJS..197...22L
ADC_Keywords: Galaxies, photometry ; Surveys ; Morphology
Keywords: atlases - galaxies: fundamental parameters - galaxies: general -
galaxies: photometry - galaxies: structure - surveys
Abstract:
The Carnegie-Irvine Galaxy Survey (CGS) is a comprehensive
investigation of the physical properties of a complete, representative
sample of 605 bright (BT≤12.9mag) galaxies in the southern
hemisphere. This contribution describes the isophotal analysis of the
broadband (BVRI) optical imaging component of the project. We pay
close attention to sky subtraction, which is particularly challenging
for some of the large galaxies in our sample. Extensive crosschecks
with internal and external data confirm that our calibration and sky
subtraction techniques are robust with respect to the quoted
measurement uncertainties. We present a uniform catalog of
one-dimensional radial profiles of surface brightness and geometric
parameters, as well as integrated colors and color gradients. We use
the geometric parameters, in conjunction with the amplitude and phase
of the m=2 Fourier mode, to identify bars and quantify their size and
strength. Finally, we utilize the information encoded in the m=1
Fourier profiles to measure disk lopsidedness.
Description:
Paper I (Cat. J/ApJS/197/21) describes the observing strategy, data
reductions, and photometric calibration of the optical imaging
component of the project. The broadband BVRI images have a field of
view of 8.9'x8.9' and a pixel scale of 0.259", which is well matched
to the good seeing typically achieved with the du Pont 2.5m telescope
at Las Campanas Observatory during the period 2003 February to 2006
June.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 127 616 Integrated colors and color gradients for the
CGS sample
table4.dat 89 616 Properties of bars
table5.dat 90 616 Properties of spiral features
table6.dat 76 616 Lopsidedness measurements
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See also:
J/ApJS/197/21 : The Carnegie-Irvine Galaxy Survey. I. (Ho+, 2011)
J/ApJ/658/1006 : Radial profiles for 161 face-on spirals (Munoz-Mateos+,
2007)
J/ApJ/659/1176 : Study of bars in 180 spiral galaxies (Marinova+, 2007)
J/A+A/438/507 : Degree of lopsidedness for galaxies (Bournaud+, 2005)
J/MNRAS/355/1251 : Bar-induced strengths in spiral galaxies (Laurikainen+,
2004)
J/A+A/421/595 : Deprojecting spiral galaxies method (Garcia-Gomez+, 2004)
J/A+A/415/849 : Deprojection of spiral galaxies (Barbera+, 2004)
J/AJ/124/782 : Bar galaxies and their environments (van den Bergh+, 2002)
J/ApJ/424/599 : Abundances in barred spiral galaxies (Martin+ 1994)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq Numerical index
5- 16 A12 --- Name Galaxy name (ESO, NGC/IC or PGC)
18- 21 F4.2 mag B-I ? Integrated (B-I) color index (1)
23- 26 F4.2 mag e_B-I ? Uncertainty in B-I
28- 31 F4.2 mag V-I ? Integrated (V-I) color index (1)
33- 36 F4.2 mag e_V-I ? Uncertainty in V-I
38- 42 F5.2 mag R-I ? Integrated (R-I) color index (1)
44- 47 F4.2 mag e_R-I ? Uncertainty in R-I
49- 53 F5.2 --- g(B-I)i ? Interior (B-I) color gradient (2)
55- 58 F4.2 --- e_g(B-I)i ? Uncertainty in g(B-I)i
60- 64 F5.2 --- g(B-I)o ? Exterior (B-I) color gradient (2)
66- 69 F4.2 --- e_g(B-I)o ? Uncertainty in g(B-I)o
71- 75 F5.2 --- g(V-I)i ? Interior (V-I) color gradient (2)
77- 80 F4.2 --- e_g(V-I)i ? Uncertainty in g(V-I)i
82- 86 F5.2 --- g(V-I)o ? Exterior (V-I) color gradient (2)
88- 91 F4.2 --- e_g(V-I)o ? Uncertainty in g(V-I)o
93- 97 F5.2 --- g(R-I)i ? Interior (R-I) color gradient (2)
99-102 F4.2 --- e_g(R-I)i ? Uncertainty in g(R-I)i
104-108 F5.2 --- g(R-I)o ? Exterior (R-I) color gradient (2)
110-113 F4.2 --- e_g(R-I)o ? Uncertainty in g(R-I)o
115-127 A13 --- Cnotes Galaxy notes (G1)
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Note (1): Derived from the total magnitudes within the last reliable
isophote (1 σ above the sky). Corrected for Galactic extinction.
Note (2): To R50 measured in the I band (see Section 6). The units
are Δmag per dex in radius. Corrected for Galactic extinction.
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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- 12 A12 --- Name Galaxy name
14 A1 --- f_Bar [a] bar size, e, and PA are determined by eye
16- 17 A2 --- Bar Bar flag (B = barred, N = not barred,
B: = possibly barred)
19- 24 F6.2 arcsec Rad ? Bar radius (3)
26- 30 F5.2 arcsec e_Rad ? Uncertainty in Rad
32- 35 F4.2 --- e ? Bar ellipticity
37- 40 F4.2 --- e_e ? Uncertainty in e
42- 47 F6.2 deg PA ? Position angle of bar; east of north
49- 53 F5.2 deg e_PA ? Uncertainty in PAbar
55- 58 F4.2 --- I2/I0 ? Relative amplitude of the m=2 mode of bar
60- 63 F4.2 --- e_I2/I0 ? Uncertainty in I2/I0
65- 70 F6.2 deg phi2 ? Phase angle φ2 of m=2 mode of bar
72- 77 F6.2 deg e_phi2 ? Uncertainty in phi2
79- 89 A11 --- Bnotes Galaxy notes (G1)
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Note (3): Intrinsic, deprojected according to Equation 7.
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Name Galaxy name
14- 17 F4.2 --- B<I2/I0> ? Average B band I2/I0 value (4)
19- 23 F5.2 --- e_B<I2/I0> ? Uncertainty in B<I2/I0>
25- 28 F4.2 --- V<I2/I0> ? Average V band I2/I0 value (4)
30- 34 F5.2 --- e_V<I2/I0> ? Uncertainty in V<I2/I0>
36- 39 F4.2 --- R<I2/I0> ? Average R band I2/I0 value (4)
41- 44 F4.2 --- e_R<I2/I0> ? Uncertainty in R<I2/I0>
46- 49 F4.2 --- I<I2/I0> ? Average I band I2/I0 value (4)
51- 54 F4.2 --- e_I<I2/I0> ? Uncertainty in I<I2/I0>
56- 60 F5.3 mag Bsig ? B band standard deviation (5)
62- 66 F5.3 mag Vsig ? V band standard deviation (5)
68- 72 F5.3 mag Rsig ? R band standard deviation (5)
74- 78 F5.3 mag Isig ? I band standard deviation (5)
80- 90 A11 mag Snotes Galaxy notes (G1)
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Note (4): relative amplitude of the m=2 mode, within the disk-dominated region.
Note (5): of the pixels within the disk-dominated region of the structure maps.
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Name Galaxy name
14- 18 F5.1 deg I ? phase angle φ1 of the lopsided region
in the I-band image
20- 24 F5.1 deg e_I ? Uncertainty in I
26- 29 F4.2 --- B<I1/I0> ? Strength of lopsidedness parameter in B band
31- 34 F4.2 --- e_B<I1/I0> ? Uncertainty in B<I1/I0>
36- 39 F4.2 --- V<I1/I0> ? Strength of lopsidedness parameter in V band
41- 44 F4.2 --- e_V<I1/I0> ? Uncertainty in V<I1/I0>
46- 49 F4.2 --- R<I1/I0> ? Strength of lopsidedness parameter in R band
51- 54 F4.2 --- e_R<I1/I0> ? Uncertainty in R<I1/I0>
56- 59 F4.2 --- I<I1/I0> ? Strength of lopsidedness parameter in I band
61- 64 F4.2 --- e_I<I1/I0> ? Uncertainty in I<I1/I0>
66- 76 A11 --- Lnotes Galaxy notes (G1)
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Globla notes:
Note (G1): BVRI filters: image of that filter has problem,
which is indicated by the table mark as:
a = Galaxy adversely affected by a very bright star.
b = Galaxy adversely affected by very crowded field stars.
c = Galaxy distorted by an interacting neighbor.
e = No magnitude zeropoint available; error bar for colors not given.
f = Galaxy has unreliable sky value determined from model fitting.
extra = object not formally part of the main sample;
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History:
From electronic version of the journal
References:
Ho et al. Paper I. 2011ApJS..197...21H 2011ApJS..197...21H Cat. J/ApJS/197/21
Huang et al. Paper III. 2013ApJ...766...47H 2013ApJ...766...47H
Huang et al. paper IV. 2016ApJ...821..114H 2016ApJ...821..114H Cat. J/ApJ/821/114
Li et al. Paper V. 2017ApJ...845...87L 2017ApJ...845...87L Cat. J/ApJ/845/87
Yu et al. Paper VI. 2018ApJ...862...13Y 2018ApJ...862...13Y Cat. J/ApJ/862/13
Gao et al. Paper VII. 2018ApJ...862..100G 2018ApJ...862..100G Cat. J/ApJ/862/100
Gao et al. Paper VIII. 2019ApJS..244...34G 2019ApJS..244...34G Cat. J/apJS/244/34
Gao et al. Paper IX. 2020ApJS..247...20G 2020ApJS..247...20G Cat. J/ApJS/247/20
Gao et al. Paper X. 2022ApJS..262...54G 2022ApJS..262...54G Cat. J/ApJS/262/54
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 12-Jan-2012