J/MNRAS/377/806 Tully-Fisher relation of DEEP2 galaxies (Chiu+, 2007)
The Tully-Fisher relation of galaxies at z∼0.85 in the DEEP2 survey.
Chiu K., Bamford S.P., Bunker A.
<Mon. Not. R. Astron. Soc., 377, 806-814 (2007)>
=2007MNRAS.377..806C 2007MNRAS.377..806C
ADC_Keywords: Galaxies, photometry ; Redshifts ; Rotational velocities
Keywords: galaxies: evolution - galaxies: formation -
galaxies: kinematics and dynamics - galaxies: spiral
Abstract:
Local and intermediate redshift (z∼0.5) galaxy samples obey well
correlated relations between the stellar population luminosity and
maximal galaxy rotation that define the TullyFisher (TF) relation.
Consensus is starting to be reached on the TF relation at z∼0.5, but
work at significantly higher redshifts is even more challenging, and
has been limited by small galaxy sample sizes, the intrinsic scatter
of galaxy properties, and increasing observational uncertainties. We
present here the TF measurements of 41 galaxies at relatively high
redshift, spectroscopically observed with the Keck/DEIMOS instrument
by the DEEP2 project, a survey which will eventually offer a large
galaxy sample of the greatest depth and number yet achieved towards
this purpose. The first-look sample analyzed here has a redshift range
of 0.75<z<1.3 with =0.85 and an intrinsic magnitude range from
MB of -22.66 to -20.57 (Vega). We find that compared to local
fiducial samples, a brightening of 1.5mag is observed, and consistent
with passive evolutionary models.
Description:
In this work we take advantage of the high spatial (0.12arcsec/pix)
and wavelength resolution (68km/s) of the DEEP2 survey, combined with
the wide area imaging archive over the DEEP2 survey region from the
CFHT CFH12K mosaic imager in the I-band (corresponding to the
rest-frame B-band at z∼0.9).
The DEEP2 spectroscopic observations were based on an optical imaging
survey taken from 1999-2000 using the CFH12K mosaic camera in the BRI
bands to a depth of RAB<24.1.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 99 41 Extracted galaxy parameters
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See also:
J/ApJ/625/6 : Galaxy groups in the DEEP2 Galaxy Redshift Survey (Gerke+, 2005)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 8 I8 --- Gal Galaxy identification number
10- 11 I2 h RAh Right ascension (J2000)
13- 14 I2 min RAm Right ascension (J2000)
16- 20 F5.2 s RAs Right ascension (J2000)
22 A1 --- DE- Declination sign (J2000)
23- 24 I2 deg DEd Declination (J2000)
26- 27 I2 arcmin DEm Declination (J2000)
29- 32 F4.1 arcsec DEs Declination (J2000)
34- 40 F7.5 --- z Redshift
42- 46 F5.2 mag Imag CFH12K I magnitude (Vega)
48- 51 F4.2 mag e_Imag rms uncertainty on Imag
53- 58 F6.2 mag BMAG Absolute B magnitude (Vega)
60- 63 F4.2 mag e_BMAG rms uncertainty on BMAG
65- 69 F5.2 deg i Galaxy inclination
71- 75 F5.2 deg e_i rms uncertainty on i
76- 80 F5.1 deg SlitGal Angular difference between galaxy PA and
spectroscopic slit orientation
82- 86 F5.1 deg MaskSlit Angular difference between slit mask and
spectroscopic slit
88- 92 F5.1 km/s Vrot Maximal rotational velocity from systemic
94- 99 F6.2 km/s e_Vrot rms uncertainty on Vrot
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 18-Mar-2008