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arXiv · 1501.06298

Shadow of noncommutative geometry inspired black hole

Shao-Wen Wei·Peng Cheng·Yi Zhong·Xiang-Nan Zhou
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Abstract

In this paper, the shadow casted by the rotating black hole inspired by noncommutative geometry is investigated. In addition to the dimensionless spin parameter $a/M_{0}$ with $M_{0}$ black hole mass and inclination angle $i$, the dimensionless noncommutative parameter $\sqrt{\vartheta}/M_{0}$ is also found to affect the shape of the black hole shadow. The result shows that the size of the shadow slightly decreases with the parameter $\sqrt{\vartheta}/M_{0}$, while the distortion increases with it. Compared to the Kerr black hole, the parameter $\sqrt{\vartheta}/M_{0}$ increases the deformation of the shadow. This may offer a way to distinguish noncommutative geometry inspired black hole from Kerr one via astronomical instruments in the near future.

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Shao-Wen Wei, Peng Cheng, Yi Zhong, Xiang-Nan Zhou. 2015-08-17. Shadow of noncommutative geometry inspired black hole. https://doi.org/10.1088/1475-7516%2F2015%2F08%2F004

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