Summary
For the Kerr metric, we calculate all of the NP components of a test electromagnetic field and all of the NP components of the curvature tensor for gravitational perturbations, using formulae derived by Cohen and Kegeles. We express these NP components in terms of known functions. We also give a new derivation of the Teukolsky-Press identities for electromagnetism and gravitation, using the formalism of Geroch, Held and Penrose.
Riassunto
Per la metrica di Kerr si calcolano tutti i componenti di NP del campo elettromagnetico di prova e tutti i componenti di NP del tensore di curvature per perturbazioni gravitazionali, usando formule derivate da Cohen e Kageles. Si esprimono questi componenti di NP in termini di funzioni note. Si dà anche una nuova derivazione delle identità di Teukolsky e Press per l’elettromagnetismo e la gravitazione, usando il formalismo di Geroch, Held e Penrose.
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Supported in part by the National Science Foundation and in part by the Air Force Office of Scientific Research.
Traduzione a cura della Redazione.
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Pechenick, K.R., Kearney, M.W. & Cohen, J.M. Electromagnetic and gravitational perturbations of the Kerr metric. Nuov Cim B 64, 453–470 (1981). https://doi.org/10.1007/BF02903303
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DOI: https://doi.org/10.1007/BF02903303