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Modified Cosmology Models from Thermodynamical Approach

Nov 14, 2019

17 pages

Published in:

Eur.Phys.J.C 80 (2020) 1, 21

Published: Jan 11, 2020

e-Print:

1911.06046 [astro-ph.CO]

DOI:

10.1140/epjc/s10052-019-7476-y (publication)

View in:

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Abstract: (Springer)

We apply the first law of thermodynamics to the apparent horizon of the universe with the power-law corrected and non-extensive Tsallis entropies rather than the Bekenstein–Hawking one. We examine the cosmological properties in the two entropy models by using the CosmoMC package. In particular, the first numerical study for the cosmological observables with the power-law corrected entropy is performed. We also show that the neutrino mass sum has a non-zero central value with a relaxed upper bound in the Tsallis entropy model comparing with that in the

\Lambda

CDM one.

Note:

17 pages, 12 figures, published version in EPJC

References(50)

Figures(12)

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