English

Gravitational Bremsstrahlung with tidal effects in the post-Minkowskian expansion

High Energy Physics - Theory 2022-10-26 v4 General Relativity and Quantum Cosmology

Abstract

We compute the mass and current quadrupole tidal corrections to the four-momentum and energy flux radiated during the scattering of two spinless bodies, at leading order in GG and at all orders in the velocities, using the effective field theory worldline approach. In particular, we derive the conserved stress-energy tensor linearly coupled to gravity generated by the two bodies, including tidal fields, and the waveform in direct space. The integral is solved using scattering amplitude techniques. We show that our expressions are consistent with existing results up to the next-to-next-to-leading order in the post-Newtonian expansion.

Keywords

Cite

@article{arxiv.2204.06556,
  title  = {Gravitational Bremsstrahlung with tidal effects in the post-Minkowskian expansion},
  author = {Stavros Mougiakakos and Massimiliano Maria Riva and Filippo Vernizzi},
  journal= {arXiv preprint arXiv:2204.06556},
  year   = {2022}
}

Comments

11 pages and 1 figure, updated with computation of the energy flux. Ancillary file updated. Typos corrections, add eq. (28) and some references