Orbits through the ergosphere of a Kerr black hole
type: Item
instance of: scholarly article
title: Orbits through the ergosphere of a Kerr black hole
zbMATH Open document ID: 0535.53056
DOI: 10.1007/BF00764017
author: N. E. Zubov
published in: General Relativity and Gravitation
publication date: 1984-01-01T00:00:00Z
review text: Based on Carter's discovery of a constant of motion Q (in addition to energy E and angular momentum L), many authors investigated geodesic orbits in the Kerr field. In order to calculate the energy which can maximally be extracted by the Penrose process, this paper looks for the relative positions of orbits with respect to the ergosphere. Eight classes are distinguished (whether orbits reach the centre, inner horizon, ergosphere, outer region or not). The classification (orbits characterized by E and L) is done for zero energy orbits (projected on the meridian plane) and for arbitrary orbits on the equatorial plane. The results are given by sometimes complicated (in)equalities for E and L as well as in diagrams.
Mathematics Subject Classification ID: 53C80
Mathematics Subject Classification ID: 53C50
Mathematics Subject Classification ID: 83C15
zbMATH DE Number: 3850048
zbMATH Keywords: Kerr metric
zbMATH Keywords: constant of motion
zbMATH Keywords: geodesic orbits
zbMATH Keywords: ergosphere
MaRDI profile type: Publication
cites work: Maximal Analytic Extension of the Kerr Metric
cites work: Global Structure of the Kerr Family of Gravitational Fields
cites work: Q4748786
cites work: Geodesics in black hole space-times
full work available at URL: https://doi.org/10.1007/bf00764017
OpenAlex ID: W2053729224
description: scientific article; zbMATH DE number 3850048