Wave polarizations for a beam-like gravitational wave in quadratic curvature gravity
E. C. de Rey Neto, J.C.N. de Araujo, O. D. Aguiar

TL;DR
This paper analytically calculates the tidal field and polarizations of an exact gravitational wave in quadratic curvature gravity, modeling it as a cylindrical beam of null matter, potentially representing waves from gamma ray burst sources.
Contribution
It introduces an exact gravitational wave solution in quadratic curvature gravity generated by a finite cylindrical null matter beam, linking it to high-energy astrophysical phenomena.
Findings
Derived analytical expressions for tidal fields and polarizations.
Proposed a model for gravitational waves from gamma ray bursts.
Suggests the wave could explain observed high-energy photon emissions.
Abstract
We compute analytically the tidal field and polarizations of an exact gravitational wave generated by a cylindrical beam of null matter of finite width and length in quadratic curvature gravity. We propose that this wave can represent the gravitational wave that keep up with the high energy photons produced in a gamma ray burst (GRB) source.
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