The cosmological parameters from supernovae

Details The cosmological parameters from supernovae The cosmological parameters from supernovae

1997-10-02

arxiv.org/abs/astro-ph/9710019v1

ASP Conf.Ser.126:207,1997

Astronomy and Astrophysics

Astrophysics

18 pages, Tex file including 8 Figures Lecture given at the Casablanca Winter School ``From Quantum Fluctuations to Cosmologic

Scientific paper

Supernovae are bright luminous stellar objects observable up to redshifts close to z~1. They are used to probe the geometry of the Universe and its expansion rate by applying different methods. In this article, I review various approaches used to measure the present expansion rate of the Universe, $H_{0}$, and the paths to determine its matter density $\Omega_{M}$ and the possible contribution of a non-zero cosmological constant $\Lambda$. An account is given of the numerical estimates of those cosmological parameters according to the present status of the research.

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