28–30 Jan 2015
Asia/Calcutta timezone

Current Cosmic Acceleration with Slotheon

29 Jan 2015, 15:45
15m
Lecture Hall-2 (SINP Auditorium)

Lecture Hall-2

SINP Auditorium

Contributory Talks Dark Energy-II

Speaker

Dr Amna Ali (SINP,Kolkata)

Description

I will discuss the cosmological viability of a slow-moving Galileon field in a potential. The Slotheon Lagrangian respects the Galileon symmetry in curved spacetime. I will carry out the detailed investigations of the underlying dynamics of this Lagrangian with an Einstein-Hilbert term and a potential. I will demonstrate that the model can give rise to a viable ghost-free late-time acceleration of the universe. Furthermore, I will also carry out the observational analysis of the model and use observational data from growth, type Ia supernovae data, baryon acoustic oscillations, and the cosmic microwave background to constrain the parameters of the theory.

Author

Dr Amna Ali (SINP,Kolkata)

Presentation materials