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

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

Authors :
I. M. Hook
A. G. Kim
M. Y. Kim
Thomas Matheson
Alexei V. Filippenko
S. Gabi
A. Goobar
R. G. McMahon
C. R. Pennypacker
Michael A. Dopita
P. S. Bunclark
B. J. Boyle
Janice C. Lee
D. Carter
D. E. Groom
R. Pain
Heidi Jo Newberg
W. J. Couch
Karl Glazebrook
Richard S. Ellis
Saul Perlmutter
G. Goldhaber
Mike Irwin
I. Small
Source :
The Astrophysical Journal. 483:565-581
Publication Year :
1997
Publisher :
American Astronomical Society, 1997.

Abstract

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 >28 supernovae discovered to date in the high-redshift supernova search of the Supernova Cosmology Project. We find a dispersion in peak magnitudes of sigma_{M_B} = 0.27 this dispersion narrows to sigma_{M_B,corr} = 0.19 after "correcting" the magnitudes using the light-curve "width-luminosity" relation found for nearby (z

Details

ISSN :
15384357 and 0004637X
Volume :
483
Database :
OpenAIRE
Journal :
The Astrophysical Journal
Accession number :
edsair.doi...........265e18082f3b7c534ad554dca81fcd07
Full Text :
https://doi.org/10.1086/304265