Determination of cosmological parameters: an introduction for non-specialists

Abstract

I start by defining the cosmological parameters $H_0,{\Omega }_m$ and ${\Omega }_{\Lambda }$. Then I show how the age of the universe depends on them, followed by the evolution of the scale parameter of the universe for various values of the density parameters. Then I define strategies for measuring them, and show the results for the recent determination of these parameters from measurements on supernovas of type 1a. Implications for particle physics is briefly discussed at the end.

12 pages, Latex with epsf.sty. Invited talk at the ``Discussion meeting on Recent Developments in Neutrino Physics'', held at the Physical Research Laboratory, Ahmedabad, February 2--4, 1999

References in corpus (1)

• The Sunyaev-Zel'dovich Effect

Cited by in corpus (3)

• Effects of initial axion production and photon--axion oscillation on type Ia supernova dimming
• Time Evolution of the Matter Content of the Expanding Universe in the Framework of Brans-Dicke Gravity
• Barboza-Alcaniz Equation of State Parametrization : Constraining the Parameters in Different Gravity Theories