G\"odel and G\"odel-type universes in Brans-Dicke theory

Understand

In this paper, conditions for existence of G\"{o}del and G\"{o}del-type solutions in Brans-Dicke (BD) scalar-tensor theory and their main features are studied.

• The consistency of equations of motion, causality violation and existence of CTCs (closed time-like curves) are investigated.
• The role which cosmological constant and Mach principle play to achieve the consistency of this model is studied.