Photon regions and shadows of Kerr-Newman-NUT black holes with a cosmological constant
Photon regions and shadows of Kerr-Newman-NUT black holes with a cosmological constant
We consider the Pleba\ifmmode \acute{n}\else \'{n}\fi{}ski class of electrovacuum solutions to the Einstein equations with a cosmological constant. These space-times, which are also known as the Kerr-Newman-NUT--(anti--)de Sitter space-times, are characterized by a mass $m$, a spin $a$, a parameter $\ensuremath{\beta}$ that comprises electric and magnetic charge, a NUT parameter …