Modified theory of gravity and the history of cosmic evolution

Abstract

A continuous transition from early Friedmann-like radiation era through to late time cosmic acceleration passing through a long Friedmann-like matter dominated era followed by a second phase of radiation era has been realized in modified theory of gravity containing a combination of curvature squared term, a linear term, a three-half term and an ideal fluid. Thus the history of cosmic evolution is explained by modified theory of gravity singlehandedly. The second phase of radiation-like era might provide an explanation to the hydrogen and helium reionization at low redshift.

15 pages, 6 figures, Astrophys Space Sci (2014)

References in corpus (25)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Unified cosmic history in modified gravity: from F(R) theory to Lorentz non-invariant models
• Extended Theories of Gravity and their Cosmological and Astrophysical Applications
• Cosmological viability of f(R)-gravity as an ideal fluid and its compatibility with a matter dominated phase
• A New Calculation of the Ionizing Background Spectrum and the Effects of HeII Reionization
• Low surface brightness galaxies rotation curves in the low energy limit of $R^n$ gravity : no need for dark matter?
• Spherically symmetric solutions in f(R)-gravity via Noether Symmetry Approach
• The Newtonian Limit of F(R) gravity
• Dark energy and dark matter as curvature effects
• Dark Energy: the equation of state description versus scalar-tensor or modified gravity
• Analysis of Rotation Curves in the framework of R^n gravity
• Viability of f(R) Theories with Additional Powers of Curvature
• Physical non-equivalence of the Jordan and Einstein frames
• Dark energy and dust matter phases from an exact $f(R)$-cosmology model
• Scalaron the mighty: producing dark matter and baryon asymmetry at reheating
• The End of Helium Reionization at z~2.7 Inferred from Cosmic Variance in HST/COS HeII Lyman Alpha Absorption Spectra
• Dark matter and dark energy as a effects of Modified Gravity
• Solar system constraints on R${}^n$ gravity
• Gravitational lensing in fourth order gravity
• Accelerated Cosmological Models in Modified Gravity tested by distant Supernovae SNIa data
• The cosmological constant as an eigenvalue of f(R)-gravity Hamiltonian constraint
• Practical solutions for perturbed f(R) gravity
• The evolution of the helium-ionizing background at z ~ 2-3
• Delayed Recombination and Cosmic Parameters
• Revisiting conserved currents in F(R) theory of gravity via Noether symmetry