Constraining power-law cosmology with observational Hubble data

In this work, we analyze observational constraints on power-law cosmology, which is characterized by two key parameters: the Hubble constant (H0) and the deceleration parameter (q). Using the latest 31 data points of observational Hubble data, we obtain bounds on these parameters. Our results indicate that power-law cosmology provides a good fit to the Hubble data, with the estimates closely matching recent findings reported in the literature. Nevertheless, while this model captures several major aspects of cosmic evolution, it falls short in accounting for finer details, particularly the dynamical transition of cosmic acceleration.

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Publication Details

Journal
BULLETIN of the L N Gumilyov Eurasian National University Physics Astronomy Series
Published
2025-09-30
DOI
https://doi.org/10.32523/2616-6836-2025-152-3-8-17
Primary Topic
Cosmology and Gravitation Theories
Type
article
Field-Weighted Citation Impact
0.00
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article

Constraining power-law cosmology with observational Hubble data

M. Shahalam, Reynaldo Teodoro de Fátima
BULLETIN of the L N Gumilyov Eurasian National University Physics Astronomy Series
Cosmology and Gravitation Theories
article

Constraining power-law cosmology with observational Hubble data

M. Shahalam, Reynaldo Teodoro de Fátima
article en

Abstract

In this work, we analyze observational constraints on power-law cosmology, which is characterized by two key parameters: the Hubble constant (H0) and the deceleration parameter (q). Using the latest 31 data points of observational Hubble data, we obtain bounds on these parameters. Our results indicate that power-law cosmology provides a good fit to the Hubble data, with the estimates closely matching recent findings reported in the literature. Nevertheless, while this model captures several major aspects of cosmic evolution, it falls short in accounting for finer details, particularly the dynamical transition of cosmic acceleration.

BULLETIN of the L N Gumilyov Eurasian National University Physics Astronomy SeriesVol. 152(3)
Integral University (IN)
Openalex Percentile: Top 81%
Cosmology and Gravitation Theories
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