Spatial curvature and thermodynamics

Authors

Narayan Banerjee, Indian Institute of Science Education and Research Kolkata
Purba Mukherjee, Indian Statistical Institute, Kolkata
Diego Pavón, Universitat Autònoma de Barcelona

Article Type

Research Article

Publication Title

Monthly Notices of the Royal Astronomical Society

Abstract

Reasonable parametrizations of the current Hubble data set of the expansion rate of our homogeneous and isotropic universe, after suitable smoothing of these data, strongly suggest that the area of the apparent horizon increases irrespective of whether the spatial curvature of the metric is open, flat, or closed. Put in another way, any sign of the spatial curvature appears consistent with the second law of thermodynamics.

First Page

5473

Last Page

5482

DOI

https://10.1093/mnras/stad921

Publication Date

6-1-2023

Comments

Open Access, Green

Recommended Citation

Banerjee, Narayan; Mukherjee, Purba; and Pavón, Diego, "Spatial curvature and thermodynamics" (2023). Journal Articles. 3696.
https://digitalcommons.isical.ac.in/journal-articles/3696