4 papers
Gravitational wave interactions with matter: beyond quadrupolar perturbations
Ulrich K. Beckering Vinckers, Nigel T. Bishop
Previous work has developed the theory of linearized gravitational wave (GW) interactions with matter using the Bondi-Sachs formalism, but with the perturbations restricted to be q…
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…
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…
Quasinormal modes of a Schwarzschild black hole within the Bondi-Sachs framework
Bishop Mongwane, Sipho Nkele, Didam G. A. Duniya +1
Studies of quasinormal modes (QNMs) of black holes have a long and well established history. Predominantly, much research in this area has customarily focused on the equations give…