J/ApJ/653/1027 TKRS/GOODS-N Field galaxies (Weiner+, 2006)
A survey of galaxy kinematics to z∼1 in the TKRS/GOODS-N Field.
I. Rotation and dispersion properties.
Weiner B.J., Willmer C.N.A., Faber S.M., Melbourne J., Kassin S.A.,
Phillips A.C., Harker J., Metevier A.J., Vogt N.P., Koo D.C.
<Astrophys. J., 653, 1027-1048 (2006)>
=2006ApJ...653.1027W 2006ApJ...653.1027W
ADC_Keywords: Surveys ; Galaxies, photometry ; Redshifts ;
Rotational velocities
Keywords: galaxies: distances and redshifts - galaxies: evolution -
galaxies: fundamental parameters - galaxies: high-redshift -
galaxies: structure - surveys
Abstract:
We present kinematic measurements of a large sample of galaxies from
the Team Keck Redshift Survey in the GOODS-N field. We measure
line-of-sight velocity dispersions from integrated emission for 1089
galaxies with median redshift 0.637 and spatially resolved kinematics
for a subsample of 380 galaxies. This is the largest sample of
galaxies to z∼1 with kinematics to date and allows us to measure
kinematic properties without morphological pre-selection.
Emission-line widths provide a dynamical measurement for the bulk of
blue galaxies. To fit the spatially resolved kinematics, we construct
models that fit both line-of-sight rotation amplitude and velocity
dispersion. Integrated line width correlates well with a combination
of the velocity gradient and dispersion and is a robust measure of
galaxy kinematics.
Description:
The parent sample for our kinematic measurements is the TKRS in the
GOODS-N field. The selection and observations are described at length
by Wirth et al. (2004, Cat. J/AJ/127/3121), and we present a few
relevant details here. Data and images of TKRS galaxies may be
retrieved from the TKRS Web site
(http://www2.keck.hawaii.edu/science/tksurvey/)
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 118 1440 Catalog of TKRS galaxies and line-width measurements
table3.dat 39 380 Catalog of TKRS rotation and dispersion fits
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See also:
J/AJ/127/3121 : TKRS catalog of GOODS-North Field (Wirth+, 2004)
J/AJ/127/180 : The Hawaii Hubble Deep Field North (Capak+, 2004)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
-------------------------------------------------------------------------------
1- 5 I5 --- TKRS TKRS ID from Wirth et al. 2004,
Cat. J/AJ/127/3121
7- 11 I5 --- Capak ? ID from Capak et al. 2004,
Cat. J/AJ/127/180
13- 22 F10.6 deg RAdeg Right Ascension in decimal degrees (J2000)
24- 32 F9.6 deg DEdeg Declination in decimal degrees (J2000)
34- 39 F6.4 --- z Redshift
41- 46 F6.2 mag Bmag ?=-99.90 Apparent B magnitude (AB) (1)
48- 53 F6.2 mag Rmag ?=-99.90 Apparent R magnitude (AB) (1)
55- 60 F6.2 mag Imag ?=-99.90 Apparent I magnitude (AB) (1)
62- 67 F6.2 mag HK'mag ?=-99.90 Apparent HK' (2.1um) magnitude (AB) (1)
69- 74 F6.2 mag e_HK'mag ?=-99.90 Error on HKmag (1)
76- 81 F6.2 mag BMAG ?=-99.99 Absolute rest-frame
B magnitude (AB) (2)
83- 88 F6.2 mag U-B ?=-99.99 Absolute rest-frame
U-B color index (AB) (2)
90- 95 F6.2 mag JMAG ?=-99.90 Absolute rest-frame
J magnitude (AB) (2)
97-102 F6.2 mag R-J ?=-99.90 Absolute rest-frame
R-J color index (AB) (2)
104-110 F7.3 [km/s] logsig1 ?=-99.90 Log of integrated line-width
from 1-d spectrum (3)
112-118 F7.3 [km/s] e_logsig1 ?=-99.90 Error on logsig1 (3)
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Note (1): From Capak et al. (2004, Cat. J/AJ/127/180) except for galaxies
with only BI use GOODS ACS aperture magnitudes (Giavalisco et al.,
2004, Cat. II/261).
Note (2): From SED K correction procedure described in text.
Note (3): Galaxies with logsig1d=1.4 and e_logsig1d=0.2 are kinematically
unresolved, see text.
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 I5 --- TKRS TKRS ID from Wirth et al. 2004,
Cat. J/AJ/127/3121
7- 12 F6.4 --- z Redshift
14- 17 F4.1 deg dPA Offset between slit PA and ACS photometric PA,
absolute value
19- 23 F5.1 km/s vsini2d Rotation velocity from modeling 2-d spectra (1)
25- 29 F5.1 km/s sigma2d Dispersion velocity from modeling 2-d spectra (2)
31- 39 A9 --- MType Morphological type (3)
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Note (1): Rotation velocities for galaxies with Del-PA>40° are biased
low due to slit misalignment.
Note (2): Values are near-quantized in units of 5km/s due to the model grid.
Note (3): Only galaxies with Del-PA<40° and ellipticity >0.25 were
classified for morphology.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 01-Aug-2008