Measurements of $\Omega$ and $\Lambda$ from 42 high redshift supernovae

  title={Measurements of \$\Omega\$ and \$\Lambda\$ from 42 high redshift supernovae},
  author={Saul Perlmutter and Greg Aldering and Gerson. Goldhaber and R. Knop and Peter E. Nugent and Patricia G. Castro and Susana E. Deustua and S{\'e}bastien Fabbro and Ariel Goobar and Donald E. Groom and Isobel M. Hook and A. G. Kim and M. Y. Kim and J. C. Lee and Nelson J. Nunes and R. Pain and Carlton R. Pennypacker and Robert M. Quimby and Christopher E. Lidman and Richard S. Ellis and Michael J. Irwin and Richard G. McMahon and Pilar Ruiz-Lapuente and Nicholas A. Walton and Bradley E. Schaefer and Brian J. Boyle and Alexei V. Filippenko and Thomas Matheson and A. S. Fruchter and Nino Panagia and Heidi Jo Newberg and Warrick J. Couch},
  journal={The Astrophysical Journal},
We report measurements of the mass density, Omega_M, and cosmological-constant energy density, Omega_Lambda, of the universe based on the analysis of 42 Type Ia supernovae discovered by the Supernova Cosmology Project. The magnitude-redshift data for these SNe, at redshifts between 0.18 and 0.83, are fit jointly with a set of SNe from the Calan/Tololo Supernova Survey, at redshifts below 0.1, to yield values for the cosmological parameters. All SN peak magnitudes are standardized using a SN Ia… Expand
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