Geodesic Structure of a Non-linear Magnetic Charged Black Hole Surrounded by Quintessence |
Li-Li Shi,Jian-Ping Hu,Yu Zhang,Chen Ma,Peng-Fei Duan |
Fig. 15 The radius of the unstable circular orbits of photon $r_{\rm uns}$ with different $C$ values for fixed $b = 4.2$, $M = 1$, $Q=0.7$. |
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