J/MNRAS/443/1231 6dF Galaxy Survey: Fundamental Plane data (Campbell+, 2014)
The 6dF Galaxy Survey: Fundamental Plane data.
Campbell L.A., Lucey J.R., Colless M., Jones D.H., Springob C.M.,
Magoulas C., Proctor R.N., Mould J.R., Read M.A., Brough S., Jarrett T.,
Merson A.I., Lah P., Beutler F., Cluver M.E., Parker Q.A.
<Mon. Not. R. Astron. Soc., 443, 1231-1251 (2014)>
=2014MNRAS.443.1231C 2014MNRAS.443.1231C
ADC_Keywords: Surveys ; Galaxies, nearby ; Galaxies, photometry
Keywords: galaxies: elliptical and lenticular, cD - galaxies: evolution -
galaxies: fundamental parameters - galaxies: photometry -
galaxies: structure
Abstract:
We report the 6dFGS Fundamental Plane (6dFGSv) catalogue that is used
to estimate distances and peculiar velocities for nearly 9000
early-type galaxies in the local (z<0.055) universe. Velocity
dispersions are derived by cross-correlation from 6dF V-band spectra
with typical S/N of 12.9Å-1 for a sample of 11315 galaxies; the
median velocity dispersion is 163km/s and the median measurement error
is 12.9 per cent. The photometric Fundamental Plane (FP) parameters
(effective radii and surface brightnesses) are determined from the JHK
2MASS images for 11102 galaxies. Comparison of the independent J- and
K-band measurements implies that the average uncertainty in XFP, the
combined photometric parameter that enters the FP, is 0.013dex (3 per
cent) for each band. Visual classification of morphologies was used to
select a sample of nearly 9000 early-type galaxies that form 6dFGSv.
This catalogue has been used to study the effects of stellar
populations on galaxy scaling relations, to investigate the variation
of the FP with environment and galaxy morphology, to explore trends in
stellar populations through, along and across the FP, and to map and
analyse the local peculiar velocity field.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 85 11520 6dFGSv velocity dispersion catalogue
table4.dat 109 11102 6dFGSv 2MASS photometric parameters
table8.dat 224 11102 6dFGS Fundamental Plane sample parameters
table9.dat 77 8053 *6dFGS stellar population catalogue
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Note on table9.dat: Two galaxies, 6dFGS g0112431-053905 and
6dFGS g0113455-055119 are only in table9.dat.
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See also:
VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)
VII/259 : 6dF galaxy survey final redshift release (Jones+, 2009)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 5 I05 --- Seq [1/11343] 6dFGSv unique reference number
7- 21 A15 --- 6dFGS 6dFGS designation (gHHMMSSs+DDMMSS)
23- 27 A5 --- --- [2MASX]
28- 44 A17 --- 2MASX 2MASX designation (JHHMMSSss+DDMMSSs)
46- 53 F8.2 d MJD Observation modified Julian date
55- 60 F6.4 --- z [0/0.057] Heliocentric redshift
62- 66 F5.1 --- S/N [5/75] Signal-to-noise ratio per Å measured
from a region between 4900 and 5000Å
68- 72 F5.1 --- R [8/32] R-parameter of the cross-correlation
(Tonry & Davis, 1979AJ.....84.1511T 1979AJ.....84.1511T)
74- 78 F5.1 km/s Vd [100/413] Velocity dispersion σ in 6.7"
diameter fibre aperture, corrected for
instrumental resolution but not for aperture size
81- 85 F5.3 [km/s] elogVd Error in the velocity dispersion σ, i.e.
εlogσ=δlogσ
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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- 5 A5 --- --- [2MASX]
6- 22 A17 --- 2MASX 2MASX designation (JHHMMSSss+DDMMSSs)
25- 30 F6.3 mag Jtot J-band total extended magnitude (jmext) (2)
34- 37 F4.2 arcsec Jfwhm J-band PSF FWHM
39- 42 F4.2 arcsec Jdr [0/1.3] J-band Δr correction applied
44- 49 F6.3 [arcsec] Jlogr [-0.01/1.63] log(Re,J), J-band PSF-corrected
circular effective radius (1)
51- 54 F4.2 --- n [0.7/6] Sersic index from GALFIT
57- 62 F6.3 mag Htot H-band total extended magnitude (hmext) (2)
66- 69 F4.2 arcsec Hfwhm H-band PSF FWHM
71- 74 F4.2 arcsec Hdr [0/1.3] H-band Δr correction applied
76- 81 F6.3 [arcsec] Hlogr [-0.01/1.62] log(Re,H), H-band PSF-corrected
circular effective radius (1)
84- 89 F6.3 mag Ktot K-band total extended magnitude (kmext) (2)
93- 96 F4.2 arcsec Kfwhm K-band PSF FWHM
99-102 F4.2 arcsec Kdr [0/1.3] K-band Δr correction applied
104-109 F6.3 [arcsec] Klogr [-0.12/1.62] log(Re,K), K-band PSF-corrected
circular effective radius (1)
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Note (1): The observed mean effective surface brightness µe can be derived
via equation 6: µe = mtot + 2.5log(2πr2)
Note (2): The apparent magnitudes (jmext, hmext and kmext) are from
the 2MASS XSC (VII/233) and are not corrected for galactic extinction.
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Byte-by-byte Description of file: table8.dat
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Bytes Format Units Label Explanations
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1- 15 A15 --- 6dFGS 6dFGS designation (gHHMMSSs+DDMMSS)
17- 21 A5 --- --- [2MASX]
22- 38 A17 --- 2MASX 2MASX designation (JHHMMSSss+DDMMSSs)
41- 49 F9.5 deg RAdeg Right Ascension (J2000)
52- 60 F9.5 deg DEdeg Declination (J2000)
63- 67 I5 km/s cz [762/16857] CMB frame galaxy redshift
70- 75 F6.3 [kpc] JlogRe [-0.9/1.4] log(Re,J), J-band effective
radius (in kpc/h) (3)
77- 81 F5.3 [kpc] e_JlogRe Error on JlogRe (in kpc/h) (3)
84- 89 F6.3 [kpc] HlogRe [-0.9/1.4] log(Re,H), H-band effective
radius (in kpc/h) (3)
91- 95 F5.3 [kpc] e_HlogRe Error on HlogRe (in kpc/h) (3)
98-103 F6.3 [kpc] KlogRe [-0.9/1.4] log(Re,K), K-band effective
radius (in kpc/h) (3)
105-109 F5.3 [kpc] e_KlogRe Error on KlogRe (in kpc/h) (3)
112-116 F5.3 [Lsun/pc2] JlogIe [2.0/4.2] log(Ie,J), J-band surface
brightness at Re,J
118-122 F5.3 [Lsun/pc2] e_JlogIe Error on JlogIe
125-129 F5.3 [Lsun/pc2] HlogIe [1.8/4.3] log(Ie,H), H-band surface
brightness at Re,H
131-135 F5.3 [Lsun/pc2] e_HlogIe Error on HlogIe
138-142 F5.3 [Lsun/pc2] KlogIe [2.0/4.3] log(Ie,K), K-band surface
brightness at Re,K
144-148 F5.3 [Lsun/pc2] e_KlogIe Error on KlogIe
151-155 F5.3 [km/s] logVd [2/2.7] logσ0, aperture-corrected
central velocity dispersion
158-162 F5.3 [km/s] e_logVd [0.007/0.253] Error on dlogVd
164-166 F3.1 --- Mt [0/6] Average morphological code (5)
168-171 I4 --- Group [11/1672]?=-1 Group or cluster ID
173-175 I3 --- Nr [0/213]?=-1 Richness of group or cluster
177-181 I5 km/s cz.gr [1523/17556]?=-1 CMB frame group or
cluster mean redshift
183-189 F7.4 Mpc d5 [0.2/45.2]?=-1 Projected co-moving distance
d5 to 5th nearest neighbour (in Mpc/h) (3)
191-197 F7.4 Mpc-2 sD5 ?=-1 Surface density Σ5 measured to
5th nearest neighbour (in (Mpc/h)-2) (3)
199-204 I6 --- Jcode [1011/111111] Indicates which selection
criteria a galaxy satisfies in J band (4)
206 I1 --- Js [0/1] Indicates whether galaxy excluded (0)
or included (3) in the J-6dFGSv sample
208-213 I6 --- Hcode [1011/111111] Indicates which selection
criteria a galaxy satisfies in H band (4)
215 I1 --- Hs [0/1] Indicates whether galaxy excluded (0)
or included (3) in the H-6dFGSv sample
217-222 I6 --- Kcode [1011/111111] Indicates which selection
criteria a galaxy satisfies in K band (4)
224 I1 --- Ks [0/1] Indicates whether galaxy excluded (0)
or included (3) in the K-6dFGSv sample
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Note (3): Some units depend on the value of the Hubble constant,
parameterised in terms of h=(H0/100km/s/Mpc).
Note (4): The selection criteria that a galaxy satisfies are encoded in a
six-digit binary strings, where digit=0/1 indicates that the galaxy
fails/satisfies the selection criterion.
The six selection criteria (in left to right string order) are:
#1 = logσ>2.05
#2 = cz>3000 & cz<16120 km/s
#3 = morphological classification acceptable
#4 = apparent magnitude <13.65(J), 12.85(H), 12.55(K)
#5 = selection probability >0.05(JHK)
#6 = χ2<12(JHK)
Note (5): the morphology code Mt is:
-4 = edge-on disk galaxy with full-length dust lane
-2 = edge-on disk galaxy with partial or no dust lane
0 = elliptical galaxy (E)
1 = transition Elliptical/S0
2 = S0 (lenticularn inclined or face-on)
3 = transition S0/Spiral
4 = Spiral (inclined or face-on)
5 = Transition Spiral/Amorphous
6 = Irregular of Amorphous
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Byte-by-byte Description of file: table9.dat
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Bytes Format Units Label Explanations
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1- 15 A15 --- 6dFGS 6dFGS designation (gHHMMSSs+DDMMSS)
19- 24 F6.3 [Gyr] logAge [-0.3/1.18] Logarithm of the galaxy age
26- 30 F5.3 [Gyr] e_logAge [0/0.3] rms uncertainty on logAge
33- 38 F6.3 [Sun] [Fe/H] [-1.2/0.74] Fe abundance
40- 44 F5.3 [Sun] e_[Fe/H] [0.02/0.41] rms uncertainty on [Fe/H]
47- 52 F6.3 [Sun] [a/Fe] [-0.3/0.8] α-element overabundance ratio
54- 58 F5.3 [Sun] e_[a/Fe] [0.02/0.18] rms uncertainty on [alpha/Fe]
61- 66 F6.3 [Sun] [Z/H] [-0.5/0.5] Overall metallicity
68- 72 F5.3 [Sun] e_[Z/H] [0.01/0.3] rms uncertainty on [Z/H]
76- 77 I2 --- Q [0/10] QSP, quality of the stellar population
parameter fits (1=best quality)
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 15-Apr-2015