Stable Bound Orbits of Massless Particles around a Black Ring

arxiv: 1302.0291 · v1 · pith:ODKGDV4Wnew · submitted 2013-02-01 · ✦ hep-th · gr-qc

Stable Bound Orbits of Massless Particles around a Black Ring

Takahisa Igata , Hideki Ishihara , Yohsuke Takamori This is my paper

classification ✦ hep-th gr-qc

keywords masslessparticlesblackorbitsringstablearoundbound

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We study the geodesic motion of massless particles in singly rotating black ring spacetimes. We find stable stationary orbits of massless particles in toroidal spiral shape in the case that the thickness parameter of a black ring is less than a critical value. Furthermore, there exist nonstationary massless particles bounded in a finite region outside the horizon. This is the first example of stable bound orbits of massless particles around a black object.

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Stable Bound Orbits of Massless Particles around a Black Ring

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