Shadow of a charged rotating non-commutative black hole

The European Physical Journal C

Sehrish Iftikhar¹  M. Sharif² 

[1] Department of Mathematics, University of the Punjab, Quaid-e-Azam Campus, 54590, Lahore, Pakistan;Department of Mathematics, University of the Punjab, Quaid-e-Azam Campus, 54590, Lahore, Pakistan;Pakistan Academy of Sciences, 3 Constitution Avenue, G-5/2, Islamabad, Pakistan;

关键词: Black Hole;    Event Horizon;    Gravitational Collapse;    Null Geodesic;    Naked Singularity;   

DOI  :  10.1140/epjc/s10052-016-4472-3

来源: Springer

【 摘 要 】

This paper investigates the shadow of a charged rotating non-commutative black hole. For this purpose, we first formulate the null geodesics and study the effects of a non-commutative charge on the photon orbit. We then explore the effect of spin, angle of inclination as well as non-commutative charge on the silhouette of the shadow. It is found that shape of the shadow deviates from the circle with the decrease in the non-commutative charge. We also discuss observable quantities to study the deformation and distortion in the shadow cast by the black hole which decreases for small values of a non-commutative charge. Finally, we study the shadows in the presence of plasma. We conclude that the non-commutativity has a great impact on the black hole shadow.

【 授权许可】

CC BY