activity
20192026
most citedEffect of a low density dust shell on the propagation of gravitational waves

8 citations · 15 across the 7 of their papers we have counts for

collaborators

7 papers

gr-qc2026

Gravitational wave propagation through viscous matter

Vishnu Kakkat, Ulrich K. Beckering Vinckers, Nigel T. Bishop +4

It has been known that gravitational waves (GWs) transfer energy to viscous matter through which they propagate, but the effect is too weak to be astrophysically significant. Using…

gr-qc2025

Gravitational wave interactions with a viscous fluid: Core collapse supernova, binary neutron star merger, and accretion around a black hole merger

Nigel T. Bishop, Vishnu Kakkat, Monos Naidoo

The interaction of gravitational waves (GWs) with matter is normally treated as being insignificant. However, recent work has shown that the interaction with a viscous fluid may be…

gr-qc2024

Astrophysical and cosmological scenarios for gravitational wave heating

Nigel T. Bishop, Vishnu Kakkat, Amos S. Kubeka +2

Gravitational waves (GWs) passing through a viscous shell of matter are expected to be damped resulting in an increase in the temperature of the fluid as energy is transferred to i…

gr-qc2024

The interaction of gravitational waves with matter

Nigel T. Bishop, Vishnu Kakkat, Amos S. Kubeka +2

It is well-known that gravitational waves undergo no absorption or dissipation when traversing through a perfect fluid. However, in the presence of a viscous fluid, GWs transfer en…

gr-qc2022

Effect of a viscous fluid shell on the propagation of gravitational waves

Nigel T. Bishop, Petrus J. van der Walt, Monos Naidoo

In this paper we show that there are circumstances in which the damping of gravitational waves (GWs) propagating through a viscous fluid can be highly significant; in particular, t…

gr-qc2021★ 7 cited

Modifications to the signal from a gravitational wave event due to a surrounding shell of matter

Monos Naidoo, Nigel T Bishop, Petrus J van der Walt

In previous work, we established theoretical results concerning the effect of matter shells surrounding a gravitational wave (GW) source, and we now apply these results to astrophy…

gr-qc2019★ 8 cited

Effect of a low density dust shell on the propagation of gravitational waves

Nigel T. Bishop, Petrus J. van der Walt, Monos Naidoo

Using the Bondi-Sachs formalism, the problem of a gravitational wave source surrounded by a spherical dust shell is considered. Using linearized perturbation theory, the geometry i…