J/ApJ/682/964 Sloan lens ACS survey. V. (Bolton+, 2008)
The Sloan lens ACS survey. V. The full ACS strong-lens sample.
Bolton A.S., Burles S., Koopmans L.V.E., Treu T., Gavazzi R.,
Moustakas L.A., Wayth R., Schlegel D.J.
<Astrophys. J., 682, 964-984 (2008)>
=2008ApJ...682..964B 2008ApJ...682..964B
ADC_Keywords: Gravitational lensing ; Redshifts ; Photometry, SDSS
Keywords: galaxies: elliptical and lenticular, cD - gravitational lensing -
surveys
Abstract:
We present the definitive data for the full sample of 131 strong
gravitational lens candidates observed with the Advanced Camera for
Surveys (ACS) aboard the Hubble Space Telescope by the Sloan Lens ACS
(SLACS) Survey. All targets were selected for higher redshift emission
lines and lower redshift continuum in a single Sloan Digital Sky
Survey (SDSS) spectrum.
Description:
The gravitational lenses presented in this work were all selected from
the spectroscopic database of the SDSS based on the presence of
absorption-dominated galaxy continuum at one redshift and nebular
emission lines (Balmer series, [OII] 3727, or [OIII] 5007) at
another, higher redshift.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 113 131 SLACS HST-ACS target observational data
notes.dat 79 10 Notes (table 6 of the paper)
table5.dat 64 63 SLACS HST-ACS grade-A strong lens model parameters
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See also:
J/A+A/501/461 : Photometric masses of early-type lens galaxies (Grillo+, 2009)
http://www.sdss.org : SDSS Home Page
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 18 A18 --- SDSS SDSS name (HHMMSS.ss+DDMMSS.s) (1)
20- 23 I4 --- Plate SDSS Plate number
24 A1 --- --- [-]
25- 29 I5 --- MJD SDSS MJD number
30 A1 --- --- [-]
31- 33 I3 --- Fiber SDSS Fiber number
35- 40 F6.4 --- zFG Foreground galaxy redshift
(directly from SDSS database)
42- 47 F6.4 --- zBG Background galaxy redshift (measured as
described in Bolton et al. 2004AJ....127.1860B 2004AJ....127.1860B)
49- 53 F5.2 mag Imag ?=- HST-ACS I814 magnitude (2)
54 A1 --- n_Imag [sd] Origin of Imag (3)
56- 59 F4.2 mag AI I-band Galactic dust extinction values (4)
61- 65 F5.1 GsolLum L(V555) ?=- Rest-frame luminosity in V555 band (5)
67- 71 F5.2 arcsec Re ?=- Effective radius (6)
73- 77 F5.3 --- Le2/LdV ?=- Ratio of luminosity within Re/2 as
determined from B-spline models to
total de Vaucouleurs model luminosity
79- 82 F4.2 --- b/a ?=- Ratio of minor to major axes for the
de Vaucouleurs image models
84- 88 F5.1 deg PA ?=- de Vaucouleurs major-axis position angle
measured east from north
90- 92 I3 km/s sigma ?=- Velocity dispersion, uncorrected for
aperture effects
94- 95 I2 km/s e_sigma ?=- rms uncertainty on sigma (7)
97 A1 --- Mph [ELU] Foreground-galaxy morphology code (8)
98 A1 --- --- [-]
99 A1 --- Mul [MS] Foreground-galaxy multiplicity code (9)
100 A1 --- --- [-]
101 A1 --- Lens [AXB] Lens status code (10)
102 A1 --- n_Lens [*] Note on Lens status in notes.dat file (11)
104-113 A10 --- Name System name (JHHMM-DDMM), as in table5
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Note (1): Nomenclature note:
Sources identified as SLACS JHHMMSS.ss+DDMMSS.s BG N.NNNN, where BG
N.NNNN is the Background galaxy redshift (zBG).
Note (2): Apparent magnitudes I814 are from HST-ACS de Vaucouleurs
models, and are quoted in the AB system without correction for
Galactic extinction.
Note (3): Note as follows:
s = magnitudes are measured from 420-s Snapshot exposures (s for snap)
d = magnitudes are measured from full-orbit multi-exposure images
(d for deep)
Note (4): I-band Galactic dust extinction values based on Schlegel et al.
1998ApJ...500..525S 1998ApJ...500..525S1998) maps are given separately, and should be
subtracted from observed magnitudes to give dust-corrected magnitudes.
Note (5): Rest-frame luminosities LV555 are as computed from I814 with
corrections for Galactic extinction, evolution, k-correction, and
cosmological distance modulus as described in the text, assuming an
absolute solar AB magnitude of V555,☉=4.83.
Note (6): Effective radii Re are measured from de Vaucouleurs image models,
and quoted at the intermediate axis.
Note (7): Reported errors are limited to a minimum of 0.05sigma. No sigma
values are reported for systems whose median S/N is less than 10 over
the range of rest-frame wavelengths used for the fit, or for systems
with multiple foreground galaxies.
Note (8): Morphology is coded as follows:
E = for early-type (elliptical and S0)
L = for late-type (Sa and later)
U = for unclassified (galaxies that cannot be unambiguously classed
as early- or late-type based on the HST-ACS data)
Note (9): Multiplicity is S=single, M=multiple
Note (10): Lens status is coded as follows:
A = for systems with clear and convincing evidence of multiple imaging
B = for systems with strong evidence of multiple imaging but
insufficient S/N for definite conclusion and/or modeling
X = for all other systems (non-lenses and non-detections)
Note (11): definite lenses, but are not modeled for reasons specified in
notes.dat file
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Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- --- [SDSS]
6- 15 A10 --- Name System name (JHHMM+DDMM)
17- 79 A63 --- Note Test of the note
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 10 A10 ---- Name System name (JHHMM-DDMM)
12- 15 F4.2 arcsec bSIE SIE (singularisothermal elliposoid) Einstein
radius, quoted for an intermediate-axis
normalization
17- 20 F4.2 --- qSIE Mass minor-to-major axis ratios of SIE models
22- 26 F5.1 deg PASIE Position angle (of SIE major axis), measured
in degrees east of north
28- 32 F5.3 --- LSIE/LdV Luminosity enclosed within SIE Einstein
radii (1)
34- 37 F4.2 arcsec bLTM LTM Einstein radius, quoted for an
intermediate-axis normalization
39- 42 F4.2 --- gammaLTM External shear value for LTM models
44- 48 F5.1 deg PAgLTM Position angle (of LTM external shear),
measured in degrees east of north
50- 54 F5.3 --- LLTM/LdV Luminosity enclosed within LTM Einstein
radii (1)
56 I1 --- Nsrc Number of source-plane components used to
model background galaxy
58- 60 A3 --- Ring? [Yes/No ] Ring subset? (2)
62- 64 A3 --- Good? [Yes/No ] Good sigmaSDSS ? (3)
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Note (1): Evaluated using B-spline luminosity models, as a fraction of de
Vaucouleurs total model luminosity.
Note (2): "Ring Subset?" column indicates whether lens is included in the
subset of systems with full or partial Einstein-ring lensed images
Note (3): "Good sigmaSDSS ?" column indicates whether velocity dispersion
is well-measured in SDSS data.
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History:
From electronic version of the journal
References;
Bolton et al. Paper I 2006ApJ...638..703B 2006ApJ...638..703B
Treu et al. Paper II 2006ApJ...640..662T 2006ApJ...640..662T
Koopmans et al. Paper III 2006ApJ...649..599K 2006ApJ...649..599K
Gavazzi et al. Paper IV 2007ApJ...667..176G 2007ApJ...667..176G
Gavazzi et al. Paper VI 2008ApJ...677.1046G 2008ApJ...677.1046G
Bolton et al. Paper VII 2008ApJ...684..248B 2008ApJ...684..248B
Treu et al. Paper VIII. 2009ApJ...690..670T 2009ApJ...690..670T Cat. J/ApJ/690/670
Auget et al. Paper IX. 2009ApJ...705.1099A 2009ApJ...705.1099A Cat. J/ApJ/705/1099
Auger et al. Paper X. 2010ApJ...724..511A 2010ApJ...724..511A
Newton et al. Paper XI. 2011ApJ...734..104N 2011ApJ...734..104N
Shu et al. Paper XII. 2015ApJ...803...71S 2015ApJ...803...71S
Shu et al. Paper XIII. 2017ApJ...851...48S 2017ApJ...851...48S Cat. J/ApJ/851/48
(End) Patricia Vannier [CDS] 31-Aug-2009