A Specific Case of Generalized Einstein-aether Theories

Abstract

With the dark energy phenomena explored over a decade, in this present work we discuss a specific case of the generalized Einstein-aether theories, in which the modified Friedmann Equation is similar to that in the Dvali-Gabadadze-Porrati (DGP) brane world model. We compute the joint statistic constraints on model parameters in this specific case by using the recent type Ia supernovae (SNe Ia) data, the Cosmic Microwave Background (CMB) shift parameter data, and the Baryonic Acoustic Oscillations (BAOs) data traced by the Sloan Digital Sky Survey (SDSS). Furthermore, we analyze other constrains from the observational Hubble parameter data (OHD). The comparison with the standard cosmological model (cosmological constant $\Lambda$ Cold Dark Matter ($\Lambda$CDM) model) is clearly shown; also we comment on the interesting relation between the coupling constant $M$ in this model and the special accelerate scale in the MOdified Newtonian Dynamics (MOND) model initially given by Milgrom with the hope for interpreting the galaxy rotation curves without introducing mysterious dark matter.

6figs,10pps

References in corpus (7)

• Cosmology and the Fate of Dilatation Symmetry
• Extended Theories of Gravity and their Cosmological and Astrophysical Applications
• The Universal Rotation Curve of Spiral Galaxies. II The Dark Matter Distribution out to the Virial Radius
• Detecting a Lorentz-Violating Field in Cosmology
• Vector field models of modified gravity and the dark sector
• On the growth of structure in theories with a dynamical preferred frame
• Constraints on the DGP Universe Using Observational Hubble parameter

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• Cosmological Evolution of Einstein-Aether Models with Power-law-like Potential
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• Reconstructions of Einstein-Aether Gravity from Barrow Agegraphic and New Barrow Agegraphic Dark Energy models: Examinations and Observational Limits
• Observational constraints and differential diagnosis for cosmic evolutionary models