Gravitational and electromagnetic signatures of accretion into a charged black hole |
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| Authors: | Claudia Moreno Juan Carlos Degollado Darío Núñez |
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| Institution: | 1.Departamento de Física,Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara,Guadalajara,Mexico;2.Instituto de Física y Matemáticas,Universidad Michoacana de San Nicolás de Hidalgo,Morelia,Mexico;3.Instituto de Ciencias Físicas,Universidad Nacional Autónoma de México,Cuernavaca,Mexico;4.Instituto de Ciencias Nucleares,Universidad Nacional Autónoma de México,Ciudad de México,Mexico |
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| Abstract: | We present the derivation and the solutions to the coupled electromagnetic and gravitational perturbations with sources in a charged black hole background. We work in the so called ghost gauge and consider as source of the perturbations the infall of radial currents. In this way, we study a system in which it is provoked a response involving both, gravitational and electromagnetic waves, which allows us to analyze the dependence between them. We solve numerically the wave equations that describe both signals, characterize the waveforms and study the relation between the input parameters of the infalling matter with those of the gravitational and electromagnetic responses. |
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