J/ApJ/755/31ivo://CDS.VizieR/J/ApJ/755/31doi:10.26093/cds/vizier.17550031CDSCao S.Covone G.Zhu Z.-H.2021-08-04T08:29:29Z2014-04-08T07:52:24ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frgravitational-lensingredshiftedWe study the redshift distribution of two samples of early-type gravitational lenses, extracted from a larger collection of 122 systems, to constrain the cosmological constant in the {Lambda}CDM model and the parameters of a set of alternative dark energy models (XCDM, Dvali-Gabadadze-Porrati, and Ricci dark energy models), in a spatially flat universe. The likelihood is maximized for {Omega}_{Lambda}_=0.70+/-0.09 when considering the sample excluding the Sloan Lens ACS systems (known to be biased toward large image-separation lenses) and no-evolution, and {Omega}_{Lambda}_=0.81+/-0.05 when limiting to gravitational lenses with image separation {Delta}{theta}>2" and no-evolution. In both cases, results accounting for galaxy evolution are consistent within 1{sigma}. The present test supports the accelerated expansion, by excluding the null hypothesis (i.e., {Omega}_{Lambda}_=0) at more than 4{sigma}, regardless of the chosen sample and assumptions on the galaxy evolution. A comparison between competitive world models is performed by means of the Bayesian information criterion. This shows that the simplest cosmological constant model--that has only one free parameter--is still preferred by the available data on the redshift distribution of gravitational lenses. We perform an analysis of the possible systematic effects, finding that the systematic errors due to sample incompleteness, galaxy evolution, and model uncertainties approximately equal the statistical errors, with present-day data. We find that the largest sources of systemic errors are the dynamical normalization and the high-velocity cutoff factor, followed by the faint-end slope of the velocity dispersion function.2012ApJ...755...31Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/755/31CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/143/119 : SDSS Quasar Lens Search. V. Final catalog (Inada+, 2012)J/ApJ/749/38 : CFHTLS-SL2S-ARCS strong lens candidates (More+, 2012)J/ApJS/176/19 : COSMOS: strong lens systems (Faure+, 2008)J/ApJ/682/964 : Sloan lens ACS survey. V. (Bolton+, 2008)J/ApJ/668/643 : Multiply imaged gravitational lens systems (Limousin+, 2007)J/ApJ/600/L155 : Gravitational lens in GOODS ACS fields (Fassnacht+, 2004)J/A+A/391/481 : R-band photometry of SBS1520+530 (Burud+, 2002)http://www.cfa.harvard.edu/castles/ : CASTLES survey home pagehttp://cosmos.astro.caltech.edu/ : Cosmological Evolution Survey (COSMOS) pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/755/31https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/755/31http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/755/31https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/755/31https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/755/31http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/755/31GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/755/31/table1 (Summary of the properties of the strongly lensed systems)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/755/31/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/755/31/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/755/31/table1?GETtext/xml+votable180.050000true7.2824167-0.93069440.0055555555555555566/2331 4124 4135 4182 4352 4596 4615 4853 5500 5701 5719 5743 5878 5922 5986 5992 6040 6105 6133 6217 6340 6393 6470 6926 7220 7266 8912 9084 9387 9409 9809 9837 9995 10020 10596 10741 10743 10990 11347 11364 11389 11424 11425 11439 11667 11797 11845 11850 11948 12804 13103 15176 16836 17238 17321 17510 17514 17665 17689 17690 17692 17751 18072 18114 18542 18778 18841 19027 19216 19776 20003 22581 23061 23193 23210 23339 25245 25480 25852 25957 25975 26012 26266 26331 26886 26951 27004 27127 27134 27204 27232 27246 27257 27258 27286 27308 27348 27407 27446 27551 27577 27672 27726 27756 27803 28245 29072 30974 31146 31378 31615 34291 36766 40274 45050 46987 47424 47847 48389https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/755/31?format=asciidefaultJ/ApJ/755/31/table1Summary of the properties of the strongly lensed systemsLensmeta.idcharnullableLinkLink to the SLACS (Cat. J/ApJ/682/964) or the CASTLES web sitemeta.idcharSimbadNameSimbad column added by the CDSmeta.idcharzlens[0.03/1.2] Redshift of the lenssrc.redshift;pos.heliocentricdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameLens name (1)meta.id;meta.maincharzs[0.1/4.5] Redshift of the sourcesrc.redshift;pos.heliocentricfloatDelt[0.3/3.8] Largest image separation ({Delta}{theta})arcsecpos.angDistance;obs.image;stat.maxfloatRefReference(s) (see refs.dat file)meta.ref;pos.framechar_RAPositions from the source in SIMBAD (right ascension part)degpos.eq.ra;meta.main_DEPositions from the source in SIMBAD (declination part)degpos.eq.dec;meta.mainJ/ApJ/755/31/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference codemeta.noteintBibCodeBibcodemeta.bib.bibcodecharAutAuthor's name(s)meta.bib.authorcharCommCommentmeta.notechar