GEOPHYSICS, ASTRONOMY AND ASTROPHYSICS: Observational constraints on the accelerating universe in the framework of a 5D bounce cosmological model

Details GEOPHYSICS, ASTRONOMY AND ASTROPHYSICS: Observational constraints on the accelerating universe in the framework of a 5D bounce cosmological model GEOPHYSICS, ASTRONOMY AND ASTROPHYSICS: Observational constraints on the accelerating universe in the framework of a 5D bounce cosmological model

Apr 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009chphb..18.1711l&link_type=abstract

Chinese Physics B, Volume 18, Issue 4, pp. 1711-1720 (2009).

Physics

3

Scientific paper

In the framework of a five-dimensional (5D) bounce cosmological model, a useful function f(z) is obtained by giving a concrete expression of deceleration parameter Then using the obtained Hubble parameter H(z) according to the function f(z), we constrain the accelerating universe from recent cosmic observations: the 192 ESSENCE SNe Ia and the 9 observational H(z) data. The best fitting values of transition redshift ZT and current deceleration parameter qo are given as . Furthermore, in the 5D bounce model it can be seen that the evolution of equation of state (EOS) for dark energy wde can cross over -1 at about z = 0.23 and the current value w0de = -1.15 < -1. On the other hand, by giving a concrete expression of model-independent EOS of dark energy wde, in the 5D bounce model we obtain the best fitting values from the recently observed data: the 192 ESSENCE SNe Ia, the observational H(z) data, the 3-year Wilkinson Microwave Anisotropy Probe (WMAP), the Sloan Digital Sky Survey (SDSS) baryon acoustic peak and the x-ray gas mass fraction in clusters.

Affiliated with

Also associated with

No associations

Rating

GEOPHYSICS, ASTRONOMY AND ASTROPHYSICS: Observational constraints on the accelerating universe in the framework of a 5D bounce cosmological model 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 GEOPHYSICS, ASTRONOMY AND ASTROPHYSICS: Observational constraints on the accelerating universe in the framework of a 5D bounce cosmological model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GEOPHYSICS, ASTRONOMY AND ASTROPHYSICS: Observational constraints on the accelerating universe in the framework of a 5D bounce cosmological model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1242348