Testing the tensor-vector-scalar Theory with the latest cosmological observations

Understand

The tensor-vector-scalar (TeVeS) model is considered a viable theory of gravity.

• It produces the Milgrom's modified Newtonian dynamics in the nonrelativistic weak field limit and is free from ghosts.
• This model has been tested against various cosmological observations.
• Here we investigate whether new observations such as the galaxy velocity power spectrum measured by 6dF and the kinetic Sunyaev Zel'dovich effect power spectrum measured by ACT/SPT can put further constraints on the TeVeS model.