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Type: Artigo de periódico
Title: Analytical potential-density pairs for bars
Author: Vogt, D
Letelier, PS
Abstract: An identity that relates multipolar solutions of the Einstein equations to Newtonian potentials of bars with linear densities proportional to Legendre polynomials is used to construct analytical potential-density pairs of infinitesimally thin bars with a given linear density profile. By means of a suitable transformation, softened bars that are free of singularities are also obtained. As an application we study the equilibrium points and stability for the motion of test particles in the gravitational field for three models of rotating bars.
Subject: galaxies: kinematics and dynamics
Country: EUA
Editor: Wiley-blackwell
Rights: aberto
Identifier DOI: 10.1111/j.1365-2966.2010.17232.x
Date Issue: 2010
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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