Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 484, Issue 3, Pages 2924-2930Publisher
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stz188
Keywords
gravitation; cosmology: theory
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Funding
- PUCV doctoral scholarship and DI-VRIEA-PUCV
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The second law of thermodynamics is known to hold at small scales also when gravity plays a leading role, as in the case of black holes and self-gravitating radiation spheres. It has been suggested that it should as well at large scales. Here, by a purely kinematic analysis - based on the history of the Hubble factor and independent of any cosmological model - we explore if this law is fulfilled in the case of homogeneous and isotropic universes regardless of the sign of the spatial curvature.
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