Cosmological constant and the fate of the DDM theory

Abstract

We investigate the impact of the non-zero cosmological constant on the classical decaying dark matter theory developed by the late Dennis Sciama. In particular, we concentrate on the change in relevant values of cosmological parameters in comparison to the high-precision estimates given by Sciama (1997). It is shown that the appropriate changes in resulting parameter values are such to make the DDM concept less plausible. This is in complete agreement with recently reported observational results detrimental to this theory.

4 pages, 2 eps figures, uses AA latex style

References in corpus (4)

• A Flat Universe from High-Resolution Maps of the Cosmic Microwave Background Radiation
• On the Interaction Between Cosmic Rays and Dark Matter Molecular Clouds in the Milky Way. l Basic Considerations
• Evidence Against the Sciama Model of Radiative Decay of Massive Neutrinos
• Flattened Galactic Haloes and Baryonic Dark Matter

Cited by in corpus (1)

• Future Evolution of Structure in an Accelerating Universe