| Autor: |
Mamon, Abdulla Al |
| Předmět: |
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| Zdroj: |
Modern Physics Letters A; Apr2018, Vol. 33 Issue 10/11, p-1, 13p |
| Abstrakt: |
In this paper, we have proposed a generalized parametrization for the deceleration parameter q in order to study the evolutionary history of the universe. We have shown that the proposed model can reproduce three well known q-parametrized models for some specific values of the model parameter . We have used the latest compilation of the Hubble parameter measurements obtained from the cosmic chronometer (CC) method (in combination with the local value of the Hubble constant ) and the Type Ia supernova (SNIa) data to place constraints on the parameters of the model for different values of . We have found that the resulting constraints on the deceleration parameter and the dark energy equation of state support the CDM model within confidence level at the present epoch. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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