Absorption of Gravitational Waves from Distant Sources
High Energy Physics - Theory
2019-07-03 v1 Cosmology and Nongalactic Astrophysics
High Energy Astrophysical Phenomena
General Relativity and Quantum Cosmology
Abstract
The rate of gravitational wave absorption by inverse bremsstrahlung is calculated. It increases with decreasing frequency as . Nevertheless, because of the near cancellation of absorption by stimulated emission, the ionized gas in galaxy clusters does not block gravitational waves at the nanohertz frequencies that may be detected by the use of pulsar timing observations.
Cite
@article{arxiv.1906.04853,
title = {Absorption of Gravitational Waves from Distant Sources},
author = {Raphael Flauger and Steven Weinberg},
journal= {arXiv preprint arXiv:1906.04853},
year = {2019}
}