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Type: Artigo de periódico
Title: Chaos in pseudo-Newtonian black holes with halos
Author: Gueron, E
Letelier, PS
Abstract: Newtonian as well as special relativistic dynamics are used to study the stability of orbits of a test particle moving around a black hole with a dipolar halo. The black hole is modeled by either the usual monopole potential or the Paczyriki-Wiita pseudo-Newtonian potential. The full general relativistic similar case is also considered. The Poincare section method and the Lyapunov characteristic exponents show that the orbits for the pseudo-Newtonian potential models are more unstable than the corresponding general relativistic geodesics.
Subject: chaos
galaxies : halos
celestial mechanics, stellar dynamics
Country: França
Editor: Edp Sciences S A
Rights: aberto
Identifier DOI: 10.1051/0004-6361:20010018
Date Issue: 2001
Appears in Collections:Unicamp - Artigos e Outros Documentos

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