J/MNRAS/483/5045ivo://CDS.VizieR/J/MNRAS/483/5045doi:10.26093/cds/vizier.74835045CDSPapadogiannakis S.Goobar A.Amanullah R.Bulla M.Dhawan S.Doran G.,Feindt U.Ferretti R.Hangard L.Howell D.A.Johansson J.,Kasliwal M.M.Laher R.Masci F.Nyholm A.Ofek E.Sollerman J.Yan L.2024-08-19T20:16:08Z2022-08-11T13:57:01ZCDS support team

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

cds-question@unistra.frsupernovaephotometryvisible-astronomyredshiftedWe present the best 265 sampled R-band light curves of spectroscopically identified Type Ia supernovae (SNe) from the Palomar Transient Factory (PTF; 2009-2012) survey and the intermediate Palomar Transient Factory (iPTF; 2013-2017). A model-independent light-curve template is built from our data-set with the purpose to investigate average properties and diversity in our sample. We searched for multiple populations in the light-curve properties using machine learning tools. We also utilized the long history of our light curves, up to 4000 days, to exclude any significant pre- or post- supernova flares. From the shapes of light curves we found the average rise time in the R band to be 16.8^+0.5^_-0.6_days. Although PTF/iPTF were single-band surveys, by modelling the residuals of the SNe in the Hubble-Lemaitre diagram, we estimate the average colour excess of our sample to be <E(B-V)>~0.05(2)mag and thus the mean corrected peak brightness to be M_R_=-19.02+/-0.02+5log(H_0_[km/s/Mpc]/70)mag with only weak dependence on light-curve shape. The intrinsic scatter is found to be {sigma}_R_=0.186+/-0.033mag for the redshift range 0.05<z<0.1, without colour corrections of individual SNe. Our analysis shows that Malmquist bias becomes very significant at z=0.13. A similar limitation is expected for the ongoing Zwicky Transient Facility (ZTF) survey using the same telescope, but new camera expressly designed for ZTF.2019MNRAS.483.5045Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/483/5045CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/483/5045https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/483/5045http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/483/5045https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/483/5045https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/483/5045http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/483/5045GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/483/5045/tablee1 (Best-fit values for each supernova with their respective asymmetric errors)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/483/5045/tablee1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/483/5045/tablee1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/483/5045/tablee1?GETtext/xml+votable180.050000true161.55367513.64791670.005555555555555556Cone search capability for table J/MNRAS/483/5045/tablee2 (Fit values and redshifts of the SNe in our sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/483/5045/tablee2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/483/5045/tablee2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/483/5045/tablee2?GETtext/xml+votable180.050000true214.5739788953.792253060.0055555555555555566/68 641 645 693 732 737 930 936 2151-2152 2156 2165 2221 2253 2258 2263 2440 2442 2483 2499 2561 2595 2605 2618 2621 2665 2759 2766 2781 4556 4685 5067 5470 5751 5990 6262-6263 6632 7032 7197 7312 7359 7606 7662 7713 7753 7756 8196 8205 8213 8226 8241 8276 8323 8345 8445 8532 8558 8592 8634 8650 8752 9260 9319 9333 9339 9374 9391 9450 9461 9472 9506-9507 9571 9591 9600 9602 9723 9756 9810 9813 9967 10038 10114 10135 10170 10214 10230 10430 10458 10473 10509 10514-10515 10568 10592 10620 10637 10673 10719 10747 10758 10822 10839 10844-10845 10863 10977 11016 11100 11104 11106 11167 11208 11223 11285 11299-11300 11427 11430 11438 11442 11461 11712 11795 11880 12059 12072 12371 12379 12548 12567 12610 12656 12703 12785 13353 13465 13476 13523 13572 13613 13619 13650 13652 17525 17659 17692 17780 17814 17834 17993 18000 18028 18113 18123 18146 18160 18166 18209 18294 18300 18309 18389 18685 18804 18918 18933 18979 19052 19129-19130 19172 19342 19385 19397 19426 19485 19490 19619 19624 19681 19692 19706 19731 19758 19801 19827 19860 19870 19941 19970 19982 19991 20013 20050 20067 20092 20119 20126 20203 20279 20291 20300 20388 22742 22771 26089 26304 26330 26341 26347 26351 26364 26452 26537 26570 26596 26943 27262 27329 27347 27604 27719 27732 27738 27749 27772 27806 27830 27858-27859 27862 27871 27910 27914 27950-27951 27966 27970 28076 28080 28443 28526 28536 31406 31480 32505 36682 49023 491152.762881831355591e-19 3.3785437584409506e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/483/5045?format=asciiOpticaldefaultJ/MNRAS/483/5045/tablee1Best-fit values for each supernova with their respective asymmetric errorsSimbadNameSimbad column added by the CDSmeta.idcharnullableE_alphadUpper error on alphad (1)stat.error;stat.maxfloate_ALower error on A (1)stat.errorfloatalphadFree parameter determining the shape of the light curve {alpha}_d_ (1)stat.fit.paramfloate_alphadLower error on alphad (1)stat.errorfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSupernova name (PTF YYaaaa)meta.id;meta.mainchart0Explosion time (1)dtime.epochfloatE_t0Upper error on t0 (1)dstat.error;stat.maxfloate_t0Lower error on t0 (1)dstat.errorfloatANormalizing factor (1)arith.factorfloatE_AUpper error on A (1)stat.error;stat.maxfloatsSmoothing parameter (1)stat.fit.paramfloatE_sUpper error on s (1)stat.error;stat.maxfloate_sLower error on s (1)stat.errorfloatalpharFree parameter determining the shape of the light curve {alpha}_r_ (1)stat.fit.paramfloatE_alpharUpper error on alphar (1)stat.error;stat.maxfloate_alpharLower error on alphar (1)stat.errorfloat_RAPositions from Simbad, table E2 and https://www.wiserep.org (right ascension part)degpos.eq.ra;meta.mainnullable_DEPositions from Simbad, table E2 and https://www.wiserep.org (declination part)degpos.eq.dec;meta.mainnullableJ/MNRAS/483/5045/tablee2Fit values and redshifts of the SNe in our sampleSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSupernova name (PTF YYaaaa)meta.id;meta.maincharzRedshiftsrc.redshiftdoubleRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainHR? Hubble-Lemaitre residualmagstat.fit.residualfloatnullableRmag? Peak R-band magnitudemagphot.mag;em.opt.Rfloatnullablee_Rmag? Error on Rmagmagstat.error;phot.magfloatnullableStretch? Stretch factor (1)stat.fit.paramfloatnullablee_Stretch? Error on Stretchstat.errorfloatnullableJ/MNRAS/483/5045/tablee3The SALT2 fit parameters for our SNe samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSupernova name (PTF YYaaaa)meta.id;meta.maincharzcmbCosmic Microwave Background frame redshiftsrc.redshiftdoublet0SALT2 Observer-frame time corresponding to the source's phase=0dtime.epochdoublee_t0Error on t0dstat.errorfloatx0SALT2 light-curve amplitudesrc.var.amplitudefloate_x0Error on x0stat.errorfloatx1SALT2 light-curve widthstat.fit.paramfloate_x1Error on x1stat.errorfloatChi2Reduced chi-squared of the SALT2 fitstat.fit.chi2;stat.fit.param;meta.modelledfloatdofNumber of degrees of freedom allowed in SALT2 fittingmeta.numberfloatJ/MNRAS/483/5045/tablee4The Gaussian processes template binned in bins of 1 dayrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime binned in bins of 1 daydtime.epochfloatF/FpeakNormalized fluxphot.flux;arith.ratiofloate_F/FpeakError on F/Fpeakstat.errorfloat