NUT charges and black hole shadows

We study the nontrivial effects of the NUT charges on the shadows of the Kerr-Taub-NUT black holes seen by zero-angular-momentum-observers. Inclination angles with which the observers gain maximal, locally extreme or minimal shadow sizes and distortions are investigated for the black holes with diff...

Full description

Bibliographic Details
Published in:Physics Letters B
Main Authors: Ming Zhang, Jie Jiang
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier 2021
Subjects:
NUT charge
Kerr-Taub-NUT black hole
Shadow
Physics
QC1-999
South Pole
North Pole
Kerr
South pole
Online Access:https://doi.org/10.1016/j.physletb.2021.136213
https://doaj.org/article/1c8ea6aea9314220b38e38f06ec5a8d2
Description
Summary:We study the nontrivial effects of the NUT charges on the shadows of the Kerr-Taub-NUT black holes seen by zero-angular-momentum-observers. Inclination angles with which the observers gain maximal, locally extreme or minimal shadow sizes and distortions are investigated for the black holes with different NUT charges and distributions of string singularities. Typically, we discover that when the observer approaches the string singularity, the shadow size can be relatively very small while the shadow distortion being relatively quite large. And exceptionally, we find that when the string singularity locates only at the south pole axis of the black hole with large enough NUT charge, the shadow size is maximal for a north pole observer.

Similar Items