The extreme orbital period in scalar hairy kerr black holes
In a very interesting paper, Hod has proven that the equatorial null circular geodesic provides the extreme orbital period to circle a kerr black hole, which is closely related to the Fermat's principle. In the present paper, we extend the discussion to kerr black holes with scalar field hair....
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Format: | Article |
Language: | English |
Published: |
Elsevier
2019-05-01
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Series: | Physics Letters B |
Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269319301777 |