J/ApJ/612/652ivo://CDS.VizieR/J/ApJ/612/652doi:10.26093/cds/vizier.16120652CDSDaly R.A.Djorgovski S.G.2017-12-05T05:10:35Z2005-06-17T16:58:18ZCDS support team

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

cds-question@unistra.frsupernovaeredshiftedradio-galaxiesUnderstanding the nature of dark energy, which appears to drive the expansion of the universe, is one of the central problems of physical cosmology today. In an earlier paper (Daly & Djorgovski, 2003ApJ...597....9D) we proposed a novel method to determine the expansion rate E(z) and the deceleration parameter q(z) in a largely model-independent way, directly from the data on coordinate distances y(z). Here we expand this methodology to include measurements of the pressure of dark energy p(z), its normalized energy density fraction f(z), and the equation-of-state parameter w(z). We then apply this methodology to a new, combined data set of distances to supernovae and radio galaxies.2004ApJ...612..652Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/612/652CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/612/652https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/612/652http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/612/652https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/612/652https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/612/652http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/612/652GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/612/652/y (Dimensionless Coordinate Distances of radio galaxies and supernovae (tables 1 and 2 of paper))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/612/652/y?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/612/652/y?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/612/652/y?GETtext/xml+votable180.050000true299.86816740.7338610.0055555555555555566/0 34 626 946 2038 2136 2227 2232 2379 4660 4719 5095 5129 5553 5758 6047 6069 6075 6178 6495 6551 6581 6936 6968 7091 7783 7923 8064 8644 8763 9036 9343 9471 9614 9631 9794 9992 10052 10203 10734 10877 11073 11158 11252 11377 11652 11667 11672 12010 12593 14744 15085 16189 16584 17660 17700 17703 17766 17767 17772 17773 18132 18296 18394 18535 18742 18791 19298 19551 19729 20353 21858 21859 21970 21971 21996 21998 22007 22373 22375 22384 22653 22739 22827 22913 22916 22946 23212 23336 23337 23405 25439 25599 25850 25889 26022 26040 26041 26042 26265 26268 26390 26725 26756 26758 26809 26923 26986 27009 27012 27045 27046 27047 27079 27092 27176 27177 27428 27805 27872 27906 28453 28498 28574 31470 32129 32307 32340 32569 33628 33839 34530 34897 35361 35629 35844 35935 36253 36862 37580 38613 38683 38844 40440 43827 43855 44001 44007 45500 45821 45823 45844 45983 46394 46561 48625https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/612/652?format=asciiOpticalRadiodefaultJ/ApJ/612/652/yDimensionless Coordinate Distances of radio galaxies and supernovae (tables 1 and 2 of paper)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource name (of galaxy of supernova)charzRedshiftfloatyThe dimensionless coordinate distance (1)floate_yThe 1{sigma} error in yfloatSampleSample rating ("Gold" or "Silver")charSimbadSimbad column added by the CDSchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main