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J/ApJ/705/1099      The Sloan Lens ACS (SLACS) Survey. IX.        (Auger+, 2009)

The Sloan Lens ACS Survey. IX. Colors, lensing, and stellar masses of early-type galaxies. Auger M.W., Treu T., Bolton A.S., Gavazzi R., Koopmans L.V.E., Marshall P.J., Bundy K., Moustakas L.A. <Astrophys. J., 705, 1099-1115 (2009)> =2009ApJ...705.1099A
ADC_Keywords: Gravitational lensing ; Galaxies, optical ; Photometry, HST ; Redshifts ; Surveys ; Morphology Keywords: galaxies: elliptical and lenticular, cD - gravitational lensing - surveys Abstract: We present the current photometric data set for the Sloan Lens ACS (SLACS) Survey, including Hubble Space Telescope (HST) photometry from Advanced Camera for Surveys, WFPC2, and NICMOS. These data have enabled the confirmation of an additional 15 grade "A" (certain) lens systems, bringing the number of SLACS grade "A" lenses to 85; including 13 grade "B" (likely) systems, SLACS has identified nearly 100 lenses and lens candidates. Approximately 80% of the grade "A" systems have elliptical morphologies while ∼10% show spiral structure; the remaining lenses have lenticular morphologies. Spectroscopic redshifts for the lens and source are available for every system, making SLACS the largest homogeneous data set of galaxy-scale lenses to date. The ensemble properties of the SLACS lens galaxies, e.g., stellar masses and projected ellipticities, appear to be indistinguishable from other SDSS galaxies with similar stellar velocity dispersions. This further supports that SLACS lenses are representative of the overall population of massive early-type galaxies with M*≳1011M, and are therefore an ideal data set to investigate the kpc-scale distribution of luminous and dark matter in galaxies out to z∼0.5. Description: A campaign was initiated to obtain HST multi-band imaging in V, I, and H (F555W, F814W, and F160W) for all of the confirmed SLACS lenses and a small number of high-probability lens candidates from Paper V (Bolton et al., 2008, Cat. J/ApJ/682/964) using the ACS WFC and NICMOS NIC2 cameras (Programs 10494, 10798, and 11202; PI: Koopmans). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 59 12 New SLACS targets table3.dat 105 85 Photometric and spectroscopic properties of SLACS lenses table4.dat 120 85 Lensing and stellar population properties of SLACS lenses
See also: B/hst : HST Archived Exposures Catalog (STScI, 2007) J/ApJ/690/670 : The Sloan lens ACS Survey. VIII. (Treu+, 2009) J/A+A/501/461 : Photometric masses of early-type lens galaxies (Grillo+, 2009) J/ApJ/682/964 : Sloan lens ACS survey. V. (Bolton+, 2008) J/ApJS/176/19 : COSMOS: strong lens systems (Faure+, 2008) J/ApJ/668/643 : Multiply imaged gravitational lens systems (Limousin+, 2007) J/ApJ/600/L155 : Gravitational lens in GOODS ACS fields (Fassnacht+, 2004) http://www.slacs.org/ : SLACS home page http://www.sdss.org/ : SDSS home page Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 4 A4 --- --- [SDSS] 5- 14 A10 --- SDSS SLACS SDSS name (JHHMM+DDMM) 16- 17 I2 h RAh Hour of right ascension (J2000) 19- 20 I2 min RAm Minute of right ascension (J2000) 22- 26 F5.2 s RAs Second of right ascension (J2000) 28 A1 --- DE- Sign of declination (J2000) 29- 30 I2 deg DEd Degree of declination (J2000) 32- 33 I2 arcmin DEm Arcminute of declination (J2000) 35- 38 F4.1 arcsec DEs Arcsecond of declination (J2000) 40- 44 F5.3 --- zFG Foreground source redshift 46- 50 F5.3 --- zBG Background source redshift 52- 54 I3 km/s sigma Velocity dispersion 56- 57 I2 km/s e_sigma rms uncertainty on sigma 59 A1 --- Grade [ABX] Grade (A: confirmed lenses; B: probable lenses; X: unlikely lenses)
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 4 A4 --- --- [SDSS] 5- 14 A10 --- SDSS SLACS SDSS name (JHHMM+DDMM) 16- 17 I2 h RAh Hour of right ascension (J2000) 19- 20 I2 min RAm Minute of right ascension (J2000) 22- 26 F5.2 s RAs Second of right ascension (J2000) 28 A1 --- DE- Sign of declination (J2000) 29- 30 I2 deg DEd Degree of declination (J2000) 32- 33 I2 arcmin DEm Arcminute of declination (J2000) 35- 38 F4.1 arcsec DEs Arcsecond of declination (J2000) 40- 44 F5.3 --- zlens Lens redshift 46- 50 F5.3 --- zsrc Source redshift 52- 54 I3 km/s sigma Lensing galaxy velocity dispersion 56- 57 I2 km/s e_sigma rms uncertainty on sigma 59- 63 A5 --- MType Morphological type 64 A1 --- f_MType [c] c: the lens galaxy has at least one close companion galaxy 66- 70 F5.2 mag Bmag ? HST/ACS B-band magnitude (F435W) 72- 75 F4.2 arcsec Re(B) ? Effective radius (measured at the intermediate axis) in B-band 77- 81 F5.2 mag Vmag ? HST V-band magnitude (F555W or F606W) 83 A1 --- f_Vmag [ab]? a: F606W filter on WFPC2 or b: F555W filter on ACS 85- 88 F4.2 arcsec Re(V) ? Effective radius (measured at the intermediate axis) in V-band 90- 94 F5.2 mag Imag ? HST/ACS I-band magnitude (F814W) 96- 99 F4.2 arcsec Re(I) ? Effective radius (measured at the intermediate axis) in I-band 101-105 F5.2 mag Hmag ? HST/NICMOS H-band magnitude (F160W)
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 4 A4 --- --- [SDSS] 5- 14 A10 --- SDSS SLACS SDSS name (JHHMM+DDMM) 16- 19 F4.2 kpc RE ? Einstein radius 21- 25 F5.2 [Msun] Mass ? Log of mass within the Einstein radius 27- 30 F4.2 --- Fc ? The stellar fraction within the Einstein radius for Chabrier IMF (fChab*,Ein) 32- 35 F4.2 --- e_Fc ? Fc uncertainty 37- 40 F4.2 --- Fs ? The stellar fraction within the Einstein radius for Salpeter IMF (f^Salp*,Ein) 42- 45 F4.2 --- e_Fs ? Fs uncertainty 47- 50 F4.2 --- F ? Ratio of the stellar fraction within the Einstein radius to the stellar fraction within the effective radius (f*,Ein/f*,eff) 52- 56 F5.2 [Msun] logMc ? Stellar mass estimate from Chabrier IMF 58- 61 F4.2 [Msun] e_logMc ? Mc uncertainty 63- 67 F5.2 [Msun] logMs ? Stellar mass estimate from Salpeter IMF 69- 72 F4.2 [Msun] e_logMs ? Ms uncertainty 74- 79 F6.2 mag BMag ? Absolute rest-frame Johnson B-band AB magnitude 81- 84 F4.2 mag e_BMag ? BMag uncertainty 86- 91 F6.2 mag VMag ? Absolute rest-frame Johnson V-band AB magnitude 93- 96 F4.2 mag e_VMag ? VMag uncertainty 98-103 F6.2 mag BMag0 ? BMag with composite stellar population (CSP) model at z=0 (1) 105-108 F4.2 mag e_BMag0 ? BMag0 uncertainty 110-115 F6.2 mag VMag0 ? VMag with composite stellar population (CSP) model at z=0 (1) 117-120 F4.2 mag e_VMag0 ? VMag0 uncertainty
Note (1): BMag and VMag are rest-frame Johnson B and V AB magnitudes inferred from our CSP modeling. BMag0 and VMag0 are the same, except the CSP models have been evolved to z=0 (the ages have been increased by the amount of cosmic time between the redshift of the galaxy and z=0, and the CSP models are re-evaluated with these new ages).
History: From electronic version of the journal References: Bolton et al. Paper I. 2006ApJ...638..703B Treu et al. Paper II. 2006ApJ...640..662T Koopmans et al. Paper III. 2006ApJ...649..599K Gavazzi et al. Paper IV. 2007ApJ...667..176G Bolton et al. Paper V. 2008ApJ...682..964B Cat. J/ApJ/682/964 Gavazzi et al. Paper VI. 2008ApJ...677.1046G Bolton et al. Paper VII. 2008ApJ...684..248B Treu et al. Paper VIII. 2009ApJ...690..670T Cat. J/ApJ/690/670 Auger et al. Paper X. 2010ApJ...724..511A Newton et al. Paper XI. 2011ApJ...734..104N
(End) Emmanuelle Perret [CDS] 05-Dec-2011
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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