Nonlinear Effects in Black Hole Ringdown
Mark Ho-Yeuk Cheung, Vishal Baibhav, Emanuele Berti, Vítor Cardoso, G. Carullo, R. Cotesta, W. Del Pozzo, Francisco Duque, Thomas Helfer, Estuti Shukla, Kaze W. K. Wong
Abstract
We report evidence for nonlinear modes in the ringdown stage of the gravitational waveform produced by the merger of two comparable-mass black holes. We consider both the coalescence of black hole binaries in quasicircular orbits and high-energy, head-on black hole collisions. The presence of nonlinear modes in the numerical simulations confirms that general-relativistic nonlinearities are important and must be considered in gravitational-wave data analysis.
Topics & Concepts
PhysicsGravitational waveBinary black holeBlack hole (networking)Nonlinear systemWaveformCoalescence (physics)GravitationComputational physicsQuantum electrodynamicsClassical mechanicsAstrophysicsQuantum mechanicsVoltageAstronomyComputer networkRouting protocolLink-state routing protocolRouting (electronic design automation)Computer sciencePulsars and Gravitational Waves ResearchAstrophysical Phenomena and ObservationsGamma-ray bursts and supernovae