Measurements of the Cosmological Parameters Ω and Λ from the First Seven Supernovae at z ≥ 0.35

  title={Measurements of the Cosmological Parameters $\Omega$ and $\Lambda$ from the First Seven Supernovae at z ≥ 0.35},
  author={Saul Perlmutter and Smail Gabi and Gerson. Goldhaber and Ariel Goobar and Donald E. Groom and Isobel M. Hook and Alex G Kim and M. Y. Kim and J. C. Lee and R. Pain and Carlton R. Pennypacker and I. A. Small and Richard S. Ellis and Richard G. McMahon and Brian J. Boyle and Peter Bunclark and Daniel Carter and Michael J. Irwin and Karl Glazebrook and Heidi Jo Newberg and Alexei V. Filippenko and Thomas Matheson and Michael A. Dopita and Warrick J. Couch},
  journal={The Astrophysical Journal},
  pages={565 - 581}
We have developed a technique to systematically discover and study high-redshift supernovae that can be used to measure the cosmological parameters. We report here results based on the initial seven of more than 28 supernovae discovered to date in the high-redshift supernova search of the Supernova Cosmology Project. We find an observational dispersion in peak magnitudes of σMB=0.27; this dispersion narrows to σMB, corr=0.19 after “correcting” the magnitudes using the light-curve “width… 

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Significant effects of weak gravitational lensing on determinations of the cosmology from Type Ia supernovae

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Hubble Space Telescope Observations of Nine High-Redshift ESSENCE Supernovae,,

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Feasibility of measuring the cosmological constant {Lambda} and mass density {Omega} using Type Ia supernovae

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The discovery of a type Ia supernova at a redshift of 0.31

OBSERVATIONS indicate that nearby supernova of type Ia have similar peak brightnesses, with a spread of less than 0.3 mag (ref. 1), so that they can potentially be used as 'standard candles' to

A Supernova at z = 0.458 and Implications for Measuring theCosmological Deceleration

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Effects of Weak Gravitational Lensing from Large-Scale Structure on the Determination of q0

Weak gravitational lensing by large-scale structure affects the determination of the cosmological deceleration parameter q0. We find that the lensing induced dispersions on truly standard candles are

Comparison of Velocity and Gravity Fields: The Mark III Tully-Fisher Catalog versus the IRAS 1.2 Jy Survey

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Photometric measurements show that, as a group, nearby Type Ia supernovae follow similar light curves and reach similar peak magnitudes (Branch & Tammann 1992). Thus, these supernovae may serve as

The extension of the Hubble diagram. II - New redshifts and photometry of very distant galaxy clusters - First indication of a deviation of the Hubble diagram from a straight line

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Statistical Connections between the Properties of Type IA Supernovae and the B-V Colors of Their Parent Galaxies, and the Value of H 0

Statistical connections between the properties of Type Ia supernovae (SNe Ia) and the B--V colors of their parent galaxies are established. Compared to SNe Ia in blue galaxies [B-V$\la$0.75], SNe Ia

The Average Mass and Light Profiles of Galaxy Clusters

The systematic errors in the virial mass-to-light ratio, Mv/L, of galaxy clusters as an estimator of the field M/L value are assessed. We overlay 14 clusters in redshift space to create an ensemble