Determining the Acceleration of the Universe as a Function of Redshift and Implications for Dark Energy

Details Determining the Acceleration of the Universe as a Function of Redshift and Implications for Dark Energy Determining the Acceleration of the Universe as a Function of Redshift and Implications for Dark Energy

Jun 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aipc..672...37d&link_type=abstract

SHORT DISTANCE BEHAVIOR OF FUNDAMENTAL INTERATIONS: 31st Coral Gables Conference on High Energy Physics and Cosmology. AIP Conf

Physics

High Energy Physics

Mathematical And Relativistic Aspects Of Cosmology, Dark Matter, Particle-Theory And Field-Theory Models Of The Early Universe

Scientific paper

One way to understand the properties of the dark energy is to study the acceleration of the universe as a function of redshift. This can be done without making assumptions regarding the nature and evolution of the dark energy through the use of measurements of the coordinate distance to sources with redshifts between zero and a few. It is shown here that the dimensionless acceleration parameter q(z) can be written as a function of redshift and the first and second derivatives of the coordinate distance. The use of this method to determine the acceleration of the universe as a function of redshift is discussed.

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