J/ApJ/741/115 Deep spectroscopy in the GOODS fields (Miller+, 2011)
The assembly history of disk galaxies.
I. The Tully-Fisher relation to z ≃ 1.3 from deep exposures with DEIMOS.
Miller S.H., Bundy K., Sullivan M., Ellis R.S., Treu T.
<Astrophys. J., 741, 115 (2011)>
=2011ApJ...741..115M 2011ApJ...741..115M
ADC_Keywords: Galaxies, spectra ; Photometry, HST ; Rotational velocities ;
Redshifts
Keywords: galaxies: evolution - galaxies: fundamental parameters -
galaxies: kinematics and dynamics - galaxies: spiral
Abstract:
We present new measures of the evolving scaling relations between
stellar mass, luminosity and rotational velocity for a morphologically
inclusive sample of 129 disk-like galaxies with zAB<22.5 in the
redshift range 0.2<z<1.3, based on spectra from DEep Imaging
Multi-Object Spectrograph on the Keck II telescope, multi-color Hubble
Space Telescope (HST) Advanced Camera for Surveys photometry, and
ground-based Ks-band imaging. A unique feature of our survey is the
extended spectroscopic integration times, leading to significant
improvements in determining characteristic rotational velocities for
each galaxy. Rotation curves are reliably traced to the radius where
they begin to flatten for ∼90% of our sample, and we model the
HST-resolved bulge and disk components in order to accurately
de-project our measured velocities, accounting for seeing and
dispersion. We demonstrate the merit of these advances by recovering
an intrinsic scatter on the stellar mass Tully-Fisher relation a
factor of two to three less than in previous studies at intermediate
redshift and comparable to that of locally determined relations. With
our increased precision, we find that the relation is well established
by ∼1, with no significant evolution to ∼0.3,
ΔM*∼0.04±0.07dex. A clearer trend of evolution is seen in
the B-band Tully-Fisher relation corresponding to a decline in
luminosity of ΔMB∼0.85±0.28 magnitudes at fixed velocity
over the same redshift range, reflecting the changes in star formation
over this period. As an illustration of the opportunities possible
when gas masses are available for a sample such as ours, we show how
our dynamical and stellar mass data can be used to evaluate the likely
contributions of baryons and dark matter to the assembly history of
spiral galaxies.
Description:
Sources were selected visually by coauthor R.S. Ellis from a
zF850LP<22.5 sample of 2978 galaxies, in the GOODS North and South
fields, discussed by Bundy et al. (2005, Cat. VII/246).
Over a number of seasons,from 2004 March through 2008 April, we
collected spectroscopic data for this sample with the DEIMOS (DEep
Imaging Multi-Object Spectrograph) instrument on Keck II. In total, we
examined 236 galaxies drawn from the target list with 0.2<z<1.3. Of
the 236 spectra, 129 show line emission extending past what we will
term the "seeing-dispersion beam". The bulk of our analysis is thus
based on these 129 galaxies with extended line emission. We achieved a
spectral resolution of 1.7Å corresponding to a velocity accuracy of
30km/s.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 138 129 Table of measurements
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See also:
VII/246 : GOODS Morphological Catalog (Bundy+, 2005)
II/261 : GOODS initial results (Giavalisco+, 2004)
II/253 : Chandra Deep Field South: multi-colour data (Wolf+, 2008)
J/A+A/511/A50 : JHks of GOODS-South field (Retzlaff+, 2010)
J/ApJ/697/1369 : GOODS Ks-selected multiwavelength compilations (Bundy+, 2009)
J/A+A/455/107 : 3D spectroscopy with VLT/GIRAFFE (Flores+, 2006)
J/ApJ/653/1027 : TKRS/GOODS-N Field galaxies (Weiner+, 2006)
J/AJ/127/3121 : TKRS catalog of GOODS-North Field (Wirth+, 2004)
J/A+A/428/1043 : Redshifts from VIMOS VLT Deep Survey (Le Fevre+, 2004)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 11 F11.7 deg RAdeg Right Ascension in decimal degrees (J2000)
13- 23 F11.7 deg DEdeg Declination in decimal degrees (J2000)
25- 28 F4.2 --- z [0.2/1.4] Redshift
30- 34 F5.2 mag zmag [18/23] Apparent z band magnitude
36- 40 F5.1 deg PAs [0/180[ Position angle of the slitlet
41 A1 --- --- [0]
43- 46 F4.2 rad PAo [0/3] Position angle offset of major axis (1)
48- 51 F4.2 --- sin(i) [0/1] The sine of the inclination
53- 57 F5.2 kpc r2.2 [2.03/24.31] Exponential scale radius times 2.2
59- 62 F4.2 kpc e_r2.2 [0.1/0.9] Error in r2.2
64- 68 F5.2 [Msun] logM [8.7/11.4] Stellar mass enclosed within r2.2
70- 73 F4.2 [Msun] e_logM [0.02/0.24] Error in logM
75- 80 F6.2 mag BMag Total absolute B band magnitude
82- 85 F4.2 mag e_BMag Error in BMag
87- 92 F6.2 mag KMag ?=-1 Total absolute Ks-band magnitude
94- 97 F4.2 mag e_KMag ?=1 Error in KMag
99-104 F6.2 km/s V2.2 [55/301] Rotational velocity at r2.2
106-110 F5.2 km/s e_V2.2 [1.9/74.8] Error in V2.2
112-116 F5.2 km/s Vslit Maximum estimate of velocity error due to
slit effects.
118-122 F5.2 [Msun] Mdyn.0 Log of lower estimate of dynamical mass (2)
124-127 F4.2 [Msun] e_Mdyn.0 Error in Mdyn.0
129-133 F5.2 [Msun] Mdyn.1 Log of upper estimate of dynamical mass (2)
135-138 F4.2 [Msun] e_Mdyn.1 Error in Mdyn.1
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Note (1): Between the slitlet and the major axis as measured by Galfit.
Note (2): limits are computed with assumptions:
* lower limit: oblated potential with a flattening factor q=0.4,
without slit effects correction;
* upper limit: spherical potential, with slit effects correction.
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History:
From electronic version of the journal
References:
Miller et al. Paper II. 2012ApJ...753...74M 2012ApJ...753...74M
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 04-Mar-2013