Cosmological Constraints from Hubble parameter $H(z)$ and SN Ia observations

Details Cosmological Constraints from Hubble parameter $H(z)$ and SN Ia observations Cosmological Constraints from Hubble parameter $H(z)$ and SN Ia observations

2008-04-19

arxiv.org/abs/0804.3135v2

Mod. Phys. Lett. A24: 1699-1709, 2009

Astronomy and Astrophysics

Astrophysics

8 pages, 4 figures and 3 tables. Accepted for pubication in Modern Physics Letters A. Any comment welcome

Scientific paper

In this paper, we use a set of observational $H(z)$ data (OHD) to constrain the $\Lambda$CDM cosmology. This data set can be derived from the differential ages of the passively evolving galaxies. Meanwhile, the $\mathcal {A}$-parameter, which describes the Baryonic Acoustic Oscillation (BAO) peak, and the newly measured value of the Cosmic Microwave Background (CMB) shift parameter $\mathcal {R}$ are used to present combinational constraints on the same cosmology. The combinational constraints favor an accelerating flat universe while the flat $\Lambda$CDM cosmology is also analyzed in the same way. We obtain a result compatible with that by many other independent cosmological observations. We find that the observational $H(z)$ data set is a complementarity to other cosmological probes.

Affiliated with

Also associated with

No associations

Rating

Cosmological Constraints from Hubble parameter $H(z)$ and SN Ia observations 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 Cosmological Constraints from Hubble parameter $H(z)$ and SN Ia observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmological Constraints from Hubble parameter $H(z)$ and SN Ia observations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-651567