Benone, C.L., Leite, L.C.S., Crispino, L.C.B. et al. (1 more author) (2018) On-axis scalar absorption cross section of Kerr–Newman black holes: Geodesic analysis, sinc and low-frequency approximations. International Journal of Modern Physics D, 27 (11). 1843012. ISSN 0218-2718
Abstract
We investigate null geodesics impinging parallel to the rotation axis of a Kerr–Newman black hole, and show that the absorption cross section for a massless scalar field in the eikonal limit can be described in terms of the photon orbit parameters. We compare our sinc and low-frequency approximations with numerical results, showing that they are in excellent agreement.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018 World Scientific Publishing. This is an author produced version of a paper subsequently published in International Journal of Modern Physics D. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Kerr–Newman black holes; null geodesics; scalar absorption |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > School of Mathematics and Statistics (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 07 Aug 2018 11:13 |
Last Modified: | 22 May 2019 00:43 |
Published Version: | https://doi.org/10.1142/S0218271818430125 |
Status: | Published |
Publisher: | World Scientific Publishing |
Refereed: | Yes |
Identification Number: | 10.1142/S0218271818430125 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:134204 |