Abstract
In this
paper, Hubble parameter versus redshift data, collected from multiple
resources, is used to place constraints on the parameters of two current
Cosmological dark energy models. The first dark energy model considered is the
Standard Model of cosmology, also known as 
CDM with spatial curvature, which is
primarily based on Einstein’s General Theory of Relativity with a spatially
homogeneous time-independent cosmological constant, . The second is the XCDM model which
parameterize dark energy as a fluid whose density can vary with time. The H(z)
data collected through different experimental sources was used to put
constraints on the parameters of these models. The constraints obtained are
then compared with the previously obtained constraints using different probes
like type-1a supernovae, distance modulus, CMB anisotropy, and baryonic
acoustic oscillations peak length scale. The results of analyzing the Hubble
parameter vs redshift data is consistent with previous conclusions that we live
in an approximately flat, accelerating Universe. However, in order to deduct
tighter constraints on cosmological models’ parameter, like the geometry of the
Universe, more and better-quality data will be needed.
How to cite this paper
Using Hubble Parameter Measurements to Find Constraints on Dark Energy Based on Different Cosmological Models
William Wilson, Muhammad Omer Farooq
Department of Physical Sciences Embry-Riddle Aeronautical University 600 S. Clyde Morris Boulevard Daytona Beach, FL 32114, USA
How to cite this paper: William Wilson, Muhammad Omer Farooq (2017) Using Hubble Parameter Measurements to Find Constraints on Dark Energy Based on Different Cosmological Models. Journal of Applied Mathematics and Computation, 1(1), 1-7.
DOI: 10.26855/jamc.2017.01.001
