Shadow of black holes with a plasma environment in 4D Einstein-Gauss-Bonnet gravity

Abstract

We study the shadow cast by rotating black holes surrounded by plasma in the context of the 4D Einstein-Gauss-Bonnet theory of gravity. The metric for these black holes results from applying the Newman-Janis algorithm to a spherically symmetric solution. We obtain the contour of the shadow for a plasma frequency model that allows a separable Hamilton-Jacobi equation. We introduce three observables in order to characterize the position, size, and shape of the shadow.

9 pages, 2 figures; prepared for the Proceedings of the Sixteenth Marcel Grossmann Meeting - MG16

References in corpus (4)

• Calculating black hole shadows: Review of analytical studies
• On Taking the $D\to 4$ limit of Gauss-Bonnet Gravity: Theory and Solutions
• Influence of a plasma on the observational signature of a high-spin Kerr black hole
• Influence of an anisotropic matter field on the shadow of a rotating black hole

Cited by in corpus (2)

• Shadows of rotating Einstein-Maxwell-dilaton black holes surrounded by a plasma
• Shadows of a Non-Commutative Black Hole under the Influence of a Magnetized Plasma