5–10 Jul 2021
Europe/Rome timezone

Testing Einstein-aether theory by observations of gravitational wave

7 Jul 2021, 11:25
25m
Talk in the parallel session Horava-Lifshitz Gravity Hořava–Lifshitz Gravity

Speaker

Dr Kai Lin (China University of Geosciences)

Description

Einstein-aether theory is a vector-tensor theory with the vector (aether) field that is always timelike and unity. It is self-consistent (such as free of ghosts and instability), and satisfies all the experimental tests carried out so far. Its Cauchy problem is well posed, and energy is always positive (as far as the hypersurface-orthogonal aether field is concerned). In addition, BHs exist and can be formed from gravitational collapse of realistic matter.

In this talk, we shall present our recent studies of gravitational waves (GWs) produced by massive and compact objects in Einstein-aether theory, including their waveforms, polarizations, response function, its Fourier transform, and energy loss rate through three different channels of radiation, the scalar, vector and tensor modes. Combination of such theoretical predictions with observations of GWs can bring severe
constraints on the theory.

Primary authors

Dr Kai Lin (China University of Geosciences) Anzhong Wang (Baylor University) Dr Chao Zhang (Baylor University ) Dr Xiang Zhao (Baylor University) Prof. Tao Zhu (Zhejiang University of Technology)

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