Cosmological Horizon and the Quadrupole Formula in de Sitter Background

@inproceedings{Date2016CosmologicalHA,
  title={Cosmological Horizon and the Quadrupole Formula in de Sitter Background},
  author={Ghanashyam Date and Sk Jahanur Hoque},
  year={2016}
}
An important class of observables for gravitational waves consists of the fluxes of energy, momentum and angular momentum carried away by them and are well understood for weak gravitational waves in Minkowski background. In de Sitter background, the future null infinity, $\mathcal{J}^+$, is space-like which makes the meaning of these observables subtle. A Spatially compact source in de Sitter background also provides a distinguished null hypersurface, its cosmological horizon, $\mathcal{H… CONTINUE READING

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