Counter-rotating Kerr manifolds separated by a fluid shell
J.P. Krisch, E.N. Glass
TL;DR
This paper models a spheroidal fluid shell separating two Kerr spacetimes with opposite rotations, analyzing the effects of counter-rotation on the properties of the spacetime match.
Contribution
It introduces a new model of a fluid shell with a stiff equation of state between counter-rotating Kerr regions, highlighting the role of counter-rotation in spacetime matching.
Findings
The shell exhibits a stiff equation of state.
The heat flow vector is related to the rotational Killing current.
Counter-rotation influences the matching conditions of Kerr spacetimes.
Abstract
We describe a spheroidal fluid shell between two Kerr vacuum regions which have opposite rotation parameters. The shell has a stiff equation of state and a heat flow vector related to the rotational Killing current. The shell description is useful in exploring the significance of counter-rotation in Kerr metric matches.
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