J/A+A/520/A109 Gas kinematics of spiral galaxies (Kutdemir+, 2010)
Internal kinematics of spiral galaxies in distant clusters.
IV. Gas kinematics of spiral galaxies in intermediate redshift clusters and
in the field.
Kutdemir E., Ziegler B.L., Peletier R.F., Da Rocha C., Boehm A., Verdugo M.
<Astron. Astrophys., 520, A109-109 (2010)>
=2010A&A...520A.109K 2010A&A...520A.109K
ADC_Keywords: Clusters, galaxy ; Redshifts ; Photometry, UBVRI ; Morphology
Keywords: galaxies: evolution - galaxies: kinematics and dynamics -
galaxies: clusters: general - galaxies: spiral
Abstract:
We trace the interaction processes of galaxies at intermediate
redshift by measuring the irregularity of their ionized gas
kinematics, and investigate these irregularities as a function of the
environment (cluster versus field) and of morphological type (spiral
versus irregular).
We obtain the gas velocity fields by placing three parallel and
adjacent VLT/FORS2 slits on each galaxy. To quantify irregularities in
the gas kinematics, we use three indicators: the standard deviation of
the kinematic position angle (σPA), the mean deviation of the
line of sight velocity profile from the cosine form which is measured
using high order Fourier terms (k3,5/k1) and the average
misalignment between the kinematical and photometric major axes
(Δφ). These indicators are then examined together with some
photometric and structural parameters (measured from HST and FORS2
images in the optical) such as the disk scale length, rest-frame
colors, asymmetry, concentration, Gini coefficient and M20 . Our
sample consists of 92 distant galaxies. 16 cluster (z∼0.3 and z∼0.5)
and 29 field galaxies (0.10≤z≤0.91, mean z=0.44) of these have
velocity fields with sufficient signal to be analyzed. To compare our
sample with the local universe, we also analyze a sample from the
SINGS survey.
Description:
Our spectroscopic observations were spread across 5 nights in October
and November 2004 for Cl 0412, 7 nights in December 2005 and February
2005 for MS 1008, 5 nights between May and July 2005 for MS 2137.
For photometric data, we use both VLT/FORS2 and HST/ACS images. We
obtained imaging of the MS 1008, MS 2137 and Cl 0412 samples in the
ACS/F606W filter while we exploited existing imaging of MS 0451 in the
ACS/F814W filter from the ST-ECF HST archive. Ground based images
were taken in the B, V, R and I filters for the whole sample. The
FORS2 filters B, V and I are close approximations to the
Johnson-Cousins photometric system while the R filter is a special
filter for FORS2 that is similar to the Cousins R .
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 75 22 Basic galaxy information for MS 0451 sample
(table1 of Paper III, Kutdemir et al.,
2008A&A...488..117K 2008A&A...488..117K)
table3.dat 59 72 Basic galaxy information for MS 1008,
MS 2137 and Cl 0413 samples
tablec1.dat 76 94 Photometric parameters for the whole sample
tablec2.dat 75 94 Morphological parameters for the MS 1008,
MS 2137 and Cl 0413 samples
tablec3.dat 86 26 Morphological parameters for the MS 0451 sample
(table C2 of Paper III, Kutdemir et al.,
2008A&A...488..117K 2008A&A...488..117K)
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See also:
J/ApJS/116/211 : CNOC cluster redshift survey catalogs. IV. (Yee+ 1998)
J/ApJS/122/51 : 10 rich galaxy clusters spectroscopic catalog (Dressler+ 1999)
J/ApJS/142/153 : Distant galaxy clusters photometry (Stanford+, 2002)
J/A+A/422/907 : Spiral galaxies velocities in distant clusters (Jaeger+, 2004)
Byte-by-byte Description of file: table[13].dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- ID Object identification (1)
6- 11 F6.4 --- z ? Redshift
13- 15 F3.1 Mpc d ? Projected distance from the cluster center
17- 31 A15 --- Name NED name (2)
33- 38 A6 --- MType1 Morphological type of the galaxy
40 I1 --- r_MType1 ? Reference for MType1 (3)
42- 48 A7 --- MType Eye-ball morphological classification
(this paper)
50- 56 F7.5 --- z1 ? Redshift of the galaxy
57 A1 --- f_z1 [p] p for photometric redshift
59 I1 --- r_z1 ? Reference for galaxy redshift (3)
61- 63 A3 --- MType2 Morphological type of the galaxy
65 I1 --- r_MType2 ? Reference for MType2 (3)
67- 73 F7.5 --- z2 ? Redshift of the galaxy
75 I1 --- r_z2 ? Reference for galaxy redshift (3)
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Note (1): Sources identified in Simbad as <[KZP2008] ANN> for table1 (1ANN),
<[KZP2010] NANN> for table3.
Note (2): NED name begin with "MS 1008.1-1224:", "MS 2137.3-2353:" and
"F1557.19TC:" for object IDs in the first column that begin with "2", "3"
and "4" respectively. For galaxies 2F13, 2F14, 2F17, 2F15, 2F16, 3F12 and
4F11 the redshift could not be determined.
Note (3): References as follows:
1 = Yee et al., 1998, Cat. J/ApJS/116/211
2 = Stanford et al., 2002, Cat. J/ApJS/142/153
3 = Dressler et al., 1999, Cat. J/ApJS/122/51
4 = Jaeger et al., 2004, Cat. J/A+A/422/907, Paper II
5 = Ellingson et al., 1998, Cat. J/ApJS/116/247
6 = Moran, 2008, Thesis, California Institute of Technology
7 = Moran et al. 2007, Cat. J/ApJS/659/1138
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Byte-by-byte Description of file: tablec1.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- ID Object ID (NANN)
6- 7 I2 h RAh Right ascension in decimal degrees (J2000)
9- 10 I2 min RAm Right ascension in decimal degrees (J2000)
12- 15 F4.1 s RAs Right ascension in decimal degrees (J2000)
17 A1 --- DE- Declination sign (J2000)
18- 19 I2 deg DEd Declination (J2000)
21- 22 I2 arcmin DEm Declination (J2000)
24- 25 I2 arcsec DEs [0/60] Declination (J2000)
27- 32 F6.2 mag BMAG ? Rest frame, galactic-extinction corrected
Johnson-B magnitude (4)
34- 37 F4.2 mag B-V ? Galactic extinction and k-corrected
Johnson B-V colour index (5)
39- 42 F4.2 mag V-R ? Galactic extinction and k-corrected
Johnson-FORS2 V-R colour index (5)
44- 47 F4.2 mag R-I ? Galactic extinction and k-corrected
FORS2-Cousins R-I colour index (5)
49- 55 E7.2 Msun M* ? Stellar mass (6)
57- 60 F4.2 --- A ? Asymmetry index
62- 65 F4.2 --- C ? Concentration index
67- 70 F4.2 --- G ? Gini coefficient (7)
72- 76 F5.2 --- M20 ? M20 index (8)
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Note (4): k-correction applied using the kcorrect algorithm by
Blanton & Roweis (2007AJ....133..734B 2007AJ....133..734B)
Note (5): colours measured from the FORS2/VLT images (The FORS2 filters B, V
and I are close approximations to the Bessel photometric system while R filter
is a special filter for FORS2).
Note (6): measured using the kcorrect algorithm by Blanton & Roweis
(2007AJ....133..734B 2007AJ....133..734B)
Note (7): The Gini coefficient quantifies the non-uniformity in the light
distribution and strongly correlates with the concentration indes for local
galaxies.
Note (8): The M20 index is the normalized second order moment of the
brightest 20% of the galaxy's flux.
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Byte-by-byte Description of file: tablec2.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- ID Object ID, [KZP2010] NANN in Simbad
5 A1 --- n_ID [*] individual notes (1)
7- 20 A14 --- Comp Component
22- 26 F5.2 mag F606W Total magnitude in F606W filter (G2)
28- 31 F4.2 mag e_F606W rms uncertainty on F606W
33- 37 F5.2 kpc Rc/Rd Effective radius of the bulge/scale length
of the disk
39- 42 F4.2 kpc e_Rc/Rd rms uncertainty on Rc/Rd
43 A1 --- f_Rc/Rd [a] a if Rc/Rd in arcsec instead of kpc (G1)
45- 48 F4.2 --- n ? Sersic index of the bulge profile
50- 53 F4.2 --- e_n ? rms uncertainty on n
55- 58 F4.2 --- q Flattening
60- 63 F4.2 --- e_q rms uncertainty on q
65- 70 F6.2 deg PA [-90/90] Position angle of the disk measured
from North through East
72- 75 F4.2 deg e_PA rms uncertainty on PA
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Note (1): Individual notes:
2F14 = The parameters of 2F14 are unreliable since there is a diffraction
spike on top of it
3F7 = The HST image of 3F7 is incomplete and therefore, its parameters are
also unreliable. The disk scale length of these galaxies is not used
in the analysis
3F13 = 3F13 could not be analyzed because of the diffraction spike on the
image
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Byte-by-byte Description of file: tablec3.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 A4 --- ID Object ID (1ANN), [KZP2008] ANN in Simbad
5 A1 --- n_ID [*] Individual note (1)
7- 20 A14 --- Comp Component
22- 26 F5.2 mag F814W Total magnitude in F814W filter (G2)
28- 31 F4.2 mag e_F814W rms uncertainty on F814W
33- 37 F5.3 kpc Rc/Rd Effective radius of the bulge/scale length
of the disk
39- 43 F5.3 kpc e_Rc/Rd rms uncertainty on Rc/Rd
44 A1 --- f_Rc/Rd [a] a if Rc/Rd in arcsec instead of kpc (G1)
46- 49 F4.2 --- n ? Sersic index of the bulge profile
51- 54 F4.2 --- e_n ? rms uncertainty on n
56- 59 F4.2 --- q Flattening
61- 64 F4.2 --- e_q rms uncertainty on q
66- 71 F6.2 deg PA ? Position angle of the disk measured
from North through East
73- 76 F4.2 deg e_PA ? rms uncertainty on PA
78- 81 F4.2 --- chi2 ? chi2 of the fit
83- 86 F4.2 --- B/D ? Bulge to disk ratio
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Note (1): Individual notes:
1F11 = The redshift of galaxy 1F11. As a result, for this galaxy, Rc/Rd
is given in arcseconds.
1C10 = The surface brightness profile of galaxy 1C10 is much more extended
on one side of the galaxy than on the other side. Therefore the scale
length and total magnitude of the disk given in the table are not
reliable. This galaxy was excluded while calculating the correlations
between the disk scale length and the irregularity in the gas
kinematics.
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Global Notes:
Note (G1): Re/Rd is given in arcseconds in case the redshift of a galaxy
is unknown.
Note (G2): The asterisk indicates choices of the photometric zero point:
* for F606W: Zp(F606W)=26.398mag
* for F814W: Zp(F814W)=25.492mag (Bedin et al., 2005MNRAS.357.1038B 2005MNRAS.357.1038B)
Nomeclature note:
Objects of MS 0451.6-0305 field identified as 1ANN,
objects of MS 1008.1-1224 field identified as 2ANN,
objects of MS 2137.3-2353 field identified as 3ANN,
objects of Cl 0412-65 field identified as 4ANN.
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History:
From electronic version of the journal
References:
Ziegler et al., Paper I 2003ApJ...598L..87Z 2003ApJ...598L..87Z
Jaeger et al., Paper II 2004A&A...422..907J 2004A&A...422..907J, Cat. J/A+A/422/907
Kutdemir et al., Paper III 2008A&A...488..117K 2008A&A...488..117K
(End) Patricia Vannier [CDS] 06-Feb-2012