A new f(R) Gravity Model and properties of Gravitational Waves in it

Understand

In this paper, we have introduced a new $f(R)$ gravity model as an attempt to have a model with more parametric control, so that the model can be used to explain the existing problems as well as to explore new directions in physics of gravity, by properly constraining it with recent observational data.

• Here basic aim is to study the properties of Gravitational Waves (GWs) in this new model.
• In $f(R)$ gravity metric formalism, the model shows the existence of scalar degree of freedom as like other $f(R)$ gravity models.
• Due to this reason, there is a scalar mode of polarization of GWs present in the theory.