Testing a DBI model for the unification of dark matter and dark energy with Gamma-Ray Bursts

Details Testing a DBI model for the unification of dark matter and dark energy with Gamma-Ray Bursts Testing a DBI model for the unification of dark matter and dark energy with Gamma-Ray Bursts

2012-02-14

arxiv.org/abs/1202.2970v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

6 pages, to appear in Proceedings of Spanish Relativity Meeting 2011 (ERE 2011) held in Madrid, Spain

Scientific paper

We study the range of consistency of a model based on a nonlinear scalar field Dirac-Born-Infeld action for the unification of dark matter and dark energy using Gamma-Ray Bursts at high-redshifts. We use the sample of 59 high-redshift GRBs reported by Wei (2010), calibrated at low redshifts with the Union 2 sample of SNe Ia, thus avoiding the circularity problem. In this analysis, we also include the CMB7-year data and the baryonic acoustic peak BAO. Besides, it is calculated the parameter of the equation of state $w$, the deceleration parameter $q_0$ and the redshift of the transition to the decelerate-accelerated phase $z_t$.

Affiliated with

Also associated with

No associations

Rating

Testing a DBI model for the unification of dark matter and dark energy with Gamma-Ray Bursts does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Testing a DBI model for the unification of dark matter and dark energy with Gamma-Ray Bursts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Testing a DBI model for the unification of dark matter and dark energy with Gamma-Ray Bursts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-88855