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PhysRevD.101.044032.pdf
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AMER PHYSICAL SOCCitation
Gralla, S. E., & Lupsasca, A. (2020). Null geodesics of the Kerr exterior. Physical Review D, 101(4). https://doi.org/10.1103/physrevd.101.044032 Journal
PHYSICAL REVIEW DRights
Copyright © 2020 American Physical Society.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
The null geodesic equation in the Kerr spacetime can be expressed as a set of integral equations involving certain potentials. We classify the roots of these potentials and express the integrals in manifestly real Legendre elliptic form. We then solve the equations using Jacobi elliptic functions, providing the complete set of null geodesics of the Kerr exterior as explicit parametrized curves.ISSN
2470-0010Version
Final published versionae974a485f413a2113503eed53cd6c53
10.1103/physrevd.101.044032