Do recent observations favor a cosmological event horizon: A thermodynamical prescription?

Abstract

Recent observational evidences claim an accelerating expansion of the universe at present epoch. It is commonly incorporated in standard cosmology by the introduction of an exotic matter (that violates the strong energy condition) known as dark energy (DE). As event horizon exists for accelerating universe so there has been a lot of work on universal thermodynamics (i.e., thermodynamics of the universe bounded by apparent or event horizon). Recently, thermodynamical equilibrium has been examined for both the horizons. In the present work we show that universal thermodynamics with event horizon is favored by DE from the point of view of equilibrium thermodynamical prescription.

15 pages, 9 figures, 5 tables Major Revision, 9 figures added, Some tables modified, New tables added

References in corpus (10)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Matter density perturbations in interacting quintessence models
• Planck Constraints on Holographic Dark Energy
• Validity of the Generalized Second Law of Thermodynamics of the Universe Bounded by the Event Horizon in Holographic Dark Energy Model
• The generalized second law of thermodynamics and the nature of the Entropy Function
• Is thermodynamics of the universe bounded by the event horizon a Bekenstein system?
• A redefinition of Hawking temperature on the event horizon: Thermodynamical equilibrium
• SNLS data are consistent with acceleration at z=3
• Validity of the Generalized Second Law of Thermodynamics of the Universe Bounded by the Event Horizon in Brane Scenario
• Thermodynamics of Lemaitre-Tolman-Bondi Model

Cited by in corpus (12)

• Dynamics of an Interacting Barrow Holographic Dark Energy Model and its Thermodynamic Implications
• Universal thermodynamics in different gravity theories: Conditions for generalized second law of thermodynamics and thermodynamical equilibrium on the horizons
• The Logotropic Dark Fluid: Observational and Thermodynamic Constraints
• A Study of Universal Thermodynamics in Lanczos-Lovelock gravity
• Modified Bekenstein-Hawking system in $f(R)$ gravity
• Particle creation and non-equilibrium thermodynamical prescription of dark fluids for universe bounded by an event horizon
• Viaggiu entropy and the generalized second law in a flat FLRW Universe
• Particle Production and Universal Thermodynamics
• A Study of Universal Thermodynamics in Massive Gravity: Modified Entropy on the Horizons
• Cosmological thermodynamics with Hawking temperature on the apparent horizon and Unruh temperature of the fluid: Some interesting consequences
• Thermodynamics of the universe bounded by the cosmological event horizon and dominated by the tachyon fluid
• Irreversible Thermodynamics of the Universe: Constraints from Planck Data