Shadow casted by a Konoplya-Zhidenko rotating non-Kerr black hole

Abstract

We have investigated the shadow of a Konoplya-Zhidenko rotating non-Kerr black hole with an extra deformation parameter. The spacetime structure arising from the deformed parameter affects sharply the black hole shadow. With the increase of the deformation parameter, the size of the shadow of black hole increase and its shape becomes more rounded for arbitrary rotation parameter. The D-shape shadow of black hole emerges only in the case $a<\frac{2\sqrt{3}}{3}M$ with the proper deformation parameter. Especially, the black hole shadow possesses a cusp shape with small eye lashes in the cases with $a>M$, and the shadow becomes less cuspidal with the increase of the deformation parameter. Our result show that the presence of the deformation parameter yields a series of significant patterns for the shadow casted by a Konoplya-Zhidenko rotating non-Kerr black hole.

12 pages, 6 figures, some typos are corrected and some references added

References in corpus (12)

• The Confrontation between General Relativity and Experiment
• Measurement of the Kerr Spin Parameter by Observation of a Compact Object's Shadow
• A new method for shadow calculations: application to parameterised axisymmetric black holes
• Apparent shape of super-spinning black holes
• Null geodesics and shadow of a rotating black hole in extended Chern-Simons modified gravity
• Shadow of a Kaluza-Klein rotating dilaton black hole
• Photon Rings around Kerr and Kerr-like Black Holes
• Chaotic lensing around boson stars and Kerr black holes with scalar hair
• Fundamental photon orbits: black hole shadows and spacetime instabilities
• What does a binary black hole merger look like?
• Testing the Kerr metric with the iron line and the KRZ parametrization
• Strong gravitational lensing by a Konoplya-Zhidenko rotating non-Kerr compact object

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