J/A+A/615/A68ivo://CDS.VizieR/J/A+A/615/A68doi:10.26093/cds/vizier.36150068CDSRoman M.Hardin D.Betoule M.Astier P.Balland C.Ellis R.S.,Fabbro S.Guy J.Hook I.M.Howell D.A.Lidman C.Mitra A.Moeller A.,Mourao A.M.Neveu J.Palanque-Delabrouille N.Pritchet C.J.,Regnault N.Ruhlmann-Kleider V.Saunders C.Sullivan M.2018-09-25T12:08:24Z2018-07-16T08:59:03ZCDS support team

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

cds-question@unistra.frgalaxiessupernovaevisible-astronomysloan-photometryWe present a fully consistent catalog of local and global properties of host galaxies of 882 Type Ia supernovae (SNIa) that were selected based on their light-curve properties, spanning the redshift range 0.01<z<1. This catalog corresponds to a preliminary version of the compilation sample and includes Supernova Legacy Survey (SNLS) 5-year data, Sloan Digital Sky Survey (SDSS), and low-redshift surveys. We measured low- and moderate-redshift host galaxy photometry in SDSS stacked and single-epoch images and used spectral energy distribution (SED) fitting techniques to derive host properties such as stellar mass and U-V rest-frame colors; the latter are an indicator of the luminosity-weighted age of the stellar population in a galaxy. We combined these results with high-redshift host photometry from the SNLS survey and thus obtained a consistent catalog of host stellar masses and colors across a wide redshift range. We also estimated the local observed fluxes at the supernova location within a proper distance radius of 3kpc, corresponding to the SNLS imaging resolution, and transposed them into local U-V rest-frame colors. This is the first time that local environments surrounding SNIa have been measured at redshifts spanning the entire Hubble diagram. Selecting SNIa based on host photometry quality, we then performed cosmological fits using local color as a third standardization variable, for which we split the sample at the median value. We find a local color step significance of -0.091+/-0.013mag (7{sigma}), which effect is as significant as the maximum mass step effect. This indicates that the remaining luminosity variations in SNIa samples can be reduced with a third standardization variable that takes the environment into account. Correcting for the maximum mass step correction of -0.094+/-0.013mag, we find a local color effect of -0.057+/-0.012mag (5{sigma}), which shows that additional information is provided by the close environment of SNIa. Departures from the initial choices were investigated and showed that the local color effect is still present, although less pronounced. We discuss the possible implications for cosmology and find that using the local color in place of the stellar mass results in a change in the measured value of the dark energy equation-of-state parameter of 0.6%. Standardization using local U-V color in addition to stretch and color reduces the total dispersion in the Hubble diagram from 0.15 to 0.14mag. This will be of tremendous importance for the forthcoming SNIa surveys, and in particular for the Large Synoptic Survey Telescope (LSST), for which uncertainties on the dark energy equation of state will be comparable to the effects reported here.2018A&A...615A..68Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/615/A68CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/615/A68https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/615/A68http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/615/A68https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/615/A68https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/615/A68http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/615/A68GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/615/A68/snprop (*Properties of the SNIa sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/615/A68/snprop?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/615/A68/snprop?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/615/A68/snprop?GETtext/xml+votable180.050000true36.811120833-4.3179861110.0055555555555555565/2856 4438 4457-4458 4517-4518 4758 4778 5797 6814 6/0 2169 2608 2641 4114 4401 4416 4583 4684 4719 4935 4989 5004 5139 5192 5591 5632 5680 5905 5990 5995 6062 6101 6501 6549 7166 7450 7522-7523 8341 8435 8479 8719 8927 9311 9449 9471 9614 10232 10379 10391 10401 10428 10767 10789 10816 10920 10978 11064 11138 11181 11403 11428 12288 13505 14907 17207 17237 17239 17406-17407 17500 17662-17663 17683 17686 17689 17692 17726-17727 17742-17743 17745 17747 17749-17751 17756 17761 17763-17764 17766-17768 17770-17771 17774 17776 17806 17809-17814 17816 17818 17821-17822 17825 17827 17837 17840 17842-17843 17856 17981 17983 17997 17999 18001-18002 18006-18008 18010-18011 18013-18014 18017 18019-18022 18025-18028 18030 18032-18033 18061-18063 18065-18067 18081 18083-18086 18089-18094 18097-18098 18112 18176 18214 18410 18686-18687 18749 18751 18765-18766 18769-18770 18772-18774 18777 18787-18788 18792 18794-18797 18800-18802 18835-18838 18841 18843-18844 18849-18852 18854-18856 18858-18859 18861 18865-18866 18881-18882 19005 19021 19023 19025 19029-19031 19036 19038 19041 19043-19044 19046-19047 19049-19054 19056 19058 19085-19087 19089-19091 19093-19094 19099-19102 19105 19107-19108 19111 19116-19117 19136 19200-19202 19227 19425 19456-19458 19581 19797 19983 20014 20031 20090 20140 20237 20279 20283 20358 21872 21917 22826 23102 23182 23185-23186 23193 23196-23198 23203-23206 23208-23209 23211-23212 23214 23216-23218 23234 25982 27245 27247 27420 27470 27491 27634 27761 27770 27912 28040 28089 28249 28353 28356 28368 28414 28572 30013 30031 30033-30037 30042 30044 30049 30053 30055 30059 30065 31293 36861 36863 48478-48479 48500-48501 491492.040811542443644e-19 6.090060298487514e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/615/A68?format=asciiOpticaldefaultJ/A+A/615/A68/snprop*Properties of the SNIa sampleSimbadNameSimbad column added by the CDSmeta.idcharzRedshift (redshift)src.redshiftdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the SNIa (name)meta.id;meta.maincharSurveySurvey (survey)meta.notecharRAJ2000[-56/359] Right ascension of the SNIa location (J2000) (ra)degpos.eq.ra;meta.mainDEJ2000Delcination of the SNIa location (J2000) (dec)degpos.eq.dec;meta.mainumagg? Host galaxy SDSS u magnitude (mag_global_u) (1)magphot.mag;em.opt.Udoublenullablegmagg? Host galaxy SDSS g magnitude (mag_global_g) (1)magphot.mag;em.opt.Bdoublenullablermagg? Host galaxy SDSS r magnitude (mag_global_r) (1)magphot.mag;em.opt.Rdoublenullableimagg? Host galaxy SDSS i magnitude (mag_global_i) (1)magphot.mag;em.opt.Idoublenullablezmagg? Host galaxy SDSS z magnitude (mag_global_z) (1)magphot.mag;em.opt.Idoublenullablee_umagg? rms uncertainty on umagg (emag_global_u) (1)magstat.error;phot.magdoublenullablee_gmagg? uncertainty on gmagg (emag_global_g) (1)magstat.error;phot.magdoublenullablee_rmagg? rms uncertainty on rmagg (emag_global_r) (1)magstat.error;phot.magdoublenullablee_imagg? rms uncertainty on imagg (emag_global_i) (1)magstat.error;phot.magdoublenullablee_zmagg? rms uncertainty on zmagg (emag_global_z) (1)magstat.error;phot.magdoublenullableumagl? SDSS u magnitude within 3kpc radius (mag_local_u) (1)magphot.mag;em.opt.Udoublenullablegmagl? SDSS g magnitude within 3kpc radius (mag_local_g) (1)magphot.mag;em.opt.Bdoublenullablermagl? SDSS r magnitude within 3kpc radius (mag_local_r) (1)magphot.mag;em.opt.Rdoublenullableimagl? SDSS i magnitude within 3kpc radius (mag_local_i) (1)magphot.mag;em.opt.Idoublenullablezmagl? SDSS z magnitude within 3kpc radius (mag_local_z) (1)magphot.mag;em.opt.Idoublenullablee_umagl? rms uncertainty on ugmal (emag_local_u) (1)magstat.error;phot.magdoublenullablee_gmagl? rms uncertainty on ggmal (emag_local_g) (1)magstat.error;phot.magdoublenullablee_rmagl? rms uncertainty on rgmal (emag_local_r) (1)magstat.error;phot.magdoublenullablee_imagl? rms uncertainty on igmal (emag_local_i) (1)magstat.error;phot.magdoublenullablee_zmagl? rms uncertainty on zgmal (emag_local_z) (1)magstat.error;phot.magdoublenullableFul? Flux in SDSS u band within 3kpc radius (flux_local_u) (1)phot.mag;em.opt.UdoublenullableFgl? Flux in SDSS g band within 3kpc radius (flux_local_g) (1)phot.mag;em.opt.BdoublenullableFrl? Flux in SDSS r band within 3kpc radius (flux_local_r) (1)phot.mag;em.opt.RdoublenullableFil? Flux in SDSS i band within 3kpc radius (flux_local_i) (1)phot.mag;em.opt.IdoublenullableFzl? Flux in SDSS z band within 3kpc radius (flux_local_z) (1)phot.mag;em.opt.Idoublenullablee_Ful[]? rms uncertainty on Ful (eflux_local_u) (1)stat.errordoublenullablee_Fgl[]? rms uncertainty on Fgl (eflux_local_g) (1)stat.errordoublenullablee_Frl[]? rms uncertainty on Frl (eflux_local_r) (1)stat.errordoublenullablee_Fil[]? rms uncertainty on Fil (eflux_local_i) (1)stat.errordoublenullablee_Fzl[]? rms uncertainty on Fzl (eflux_local_z) (1)stat.errordoublenullableU-Vl? Local U-V colour index within 3kpc radius (uv_local)magphot.color;em.opt.U;em.opt.Vdoublenullablee_U-Vl? rms uncertainty on U-Vl (euv_local)magstat.error;phot.color;em.opt.UdoublenullableU-Vg? Host galaxy U-V colour index (uv_global)magphot.color;em.opt.U;em.opt.Vdoublenullablee_U-Vg? rms uncertainty on U-Vg (euv_global)magstat.error;phot.color;em.opt.UdoublenullablelogMs? Stellar mass of the host galaxy (stellar_mass)log(solMass)phys.massdoublenullablee_logMs? rms uncertainty on logMs (estellar_mass)log(solMass)stat.errordoublenullableDistProjected distance of the SNIa to the galactic center (d_kpc)kpcpos.distancedoubleSloanDisplay the online SDSS data for this galaxymeta.ref.urlchar