HURÉ, J.-M.; PIERENS, A.

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HURÉ, J.-M.
Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
Observatoire aquitain des sciences de l'univers [OASU]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]

PIERENS, A.

Idioma

Communication dans un congrès

Este ítem está publicado en

2006sf2a.conf..105H - SF2A-2006: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics, 2006sf2a.conf..105H - SF2A-2006: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics, 2006, Paris. 2006p. 105

Resumen en inglés

Whereas ``soften gravity'' simplifies the computation of the gravitational potential due to continuous distributions of matter, it usually fails to give reliable values. For flat disks, λ is set to a certain fraction of the (real) disk thickness. However, this fraction seems arbitrary and varies from one author to the other. We have determined this fraction for axisymmetrical systems from a rigorous mathematical analysis.< Leer menos

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Laboratoire d'Astrophysique de Bordeaux (LAB) - UMR 5804