Constraints on a new alternative model to dark energy

Abstract

The recent type Ia supernova data suggest that the universe is accelerating now and decelerated in recent past. This may provide the evidence that the standard Friedmann equation needs to be modified. We analyze in detail a new model in the context of modified Friedmann equation using the supernova data published by the High-$z$ Supernova Search Team and the Supernova Cosmology Project. The new model explains recent acceleration and past deceleration. Furthermore, the new model also gives a decelerated universe in the future.

arXiv comment12 pages, 5 figures, use ws-ijmpd, minor changes made. In the new version, a detailed derivation of the model is given

References in corpus (5)

• Type Ia Supernova Discoveries at z>1 From the Hubble Space Telescope: Evidence for Past Deceleration and Constraints on Dark Energy Evolution
• Non-conventional cosmology from a brane-universe
• Do SNe Ia Provide Direct Evidence for Past Deceleration of the Universe?
• Observational Implications of Cosmological Event Horizons
• A new alternative model to dark energy

Cited by in corpus (2)

• Current constraints on interacting holographic dark energy
• Super-acceleration on the Brane by Energy Flow from the Bulk