SUPERNOVA Ia AND GALAXY CLUSTER GAS MASS FRACTION CONSTRAINTS ON DARK ENERGY

Author:

WILSON KYLE M.1,CHEN GANG1,RATRA BHARAT1

Affiliation:

1. Department of Physics, Kansas State University, 116 Cardwell Hall, Manhattan, KS 66506, USA

Abstract

We use the Riess et al. (2004)1 supernova Ia apparent magnitude versus redshift data and the Allen et al. (2004)2 galaxy cluster gas mass fraction versus redshift data to constrain dark energy models. These data provide complementary constraints that when combined together significantly restrict model parameters and favor slowly-evolving dark energy density models, close to the Einstein cosmological constant limit of dark energy.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,Astronomy and Astrophysics,Nuclear and High Energy Physics

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4. Fractional Action Cosmology with Variable Order Parameter;International Journal of Theoretical Physics;2017-01-06

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