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- W4307405789 endingPage "087" @default.
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- W4307405789 abstract "Abstract We calculate the quasinormal modes (QNM) frequencies of a test massless scalar field and an electromagnetic field around static black holes in f ( T ) gravity. Focusing on quadratic f ( T ) modifications, which is a good approximation for every realistic f ( T ) theory, we first extract the spherically symmetric solutions using the perturbative method, imposing two ansätze for the metric functions, which suitably quantify the deviation from the Schwarzschild solution. Moreover, we extract the effective potential, and then calculate the QNM frequency of the obtained solutions. Firstly, we numerically solve the Schrödinger-like equation using the discretization method, and we extract the frequency and the time evolution of the dominant mode applying the function fit method. Secondly, we perform a semi-analytical calculation by applying the WKB method with the Pade approximation. We show that the results for f ( T ) gravity are different compared to General Relativity, and in particular we obtain a different slope and period of the field decay behavior for different model parameter values. Hence, under the light of gravitational-wave observations of increasing accuracy from binary systems, the whole analysis could be used as an additional tool to test General Relativity and examine whether torsional gravitational modifications are possible." @default.
- W4307405789 created "2022-11-01" @default.
- W4307405789 creator A5001261011 @default.
- W4307405789 creator A5006901831 @default.
- W4307405789 creator A5012913117 @default.
- W4307405789 creator A5024094679 @default.
- W4307405789 creator A5053315008 @default.
- W4307405789 date "2022-10-01" @default.
- W4307405789 modified "2023-10-14" @default.
- W4307405789 title "Quasinormal modes of black holes in f(T) gravity" @default.
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