Compact static stars in minimal dilatonic gravity

Mar 28, 2014, 2:40 PM
20m

Speaker

Dr Plamen Fiziev (Foundation of Theoretical and Computational Physics and Astrophysics (TCPA) Sofia University)

Description

We present the basic equations and relations for the relativistic static spherically symmetric stars (SSSS) in the model of minimal dilatonic gravity (MDG) which is locally equivalent to the f(R) theories of gravity and gives an alternative description of the effects of dark matter and dark energy. The results for a simplest form of relativistic equation of state (EOS) of neutron matter are represented. Our approach overcomes the well known difficulties of the physics of SSSS in f(R) theories of gravity introducing two novel EOS for cosmological energy-pressure densities and dilaton energy-pressure densities, as well as proper boundary conditions.

Primary author

Dr Plamen Fiziev (Foundation of Theoretical and Computational Physics and Astrophysics (TCPA) Sofia University)

Presentation materials