Shadow of noncommutative geometry inspired black hole

Journal Article · Sat Aug 01 04:00:00 EDT 2015 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2015/08/004· OSTI ID:22525682

Wei, Shao-Wen; Cheng, Peng; Zhong, Yi; Zhou, Xiang-Nan ^[1]

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1. Institution, Theoretical Physics, Lanzhou University, No. 222, Tianshui Road (south), Lanzhou, 730000 (China)

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{sub 0} with M{sub 0} black hole mass and inclination angle i, the dimensionless noncommutative parameter √θ/M{sub 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 √θ/M{sub 0}, while the distortion increases with it. Compared to the Kerr black hole, the parameter √θ/M{sub 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.

• OSTI ID: 22525682
• Journal Information: Journal of Cosmology and Astroparticle Physics, Journal Name: Journal of Cosmology and Astroparticle Physics Journal Issue: 08 Vol. 2015; ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
ASTROPHYSICS
BLACK HOLES
COMMUTATION RELATIONS
COMPARATIVE EVALUATIONS
DEFORMATION
INCLINATION
MASS
SPIN