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Rotation Curves of Galactic Disks for Arbitrary Surface Density Profiles: A Simple and Efficient Recipe

2003/12/19 by A. Pierens, J.-M. Huré, J. -M. Huré · 1 citation
Physics and Astronomy · #Astrophysical Phenomena and Observations #Scientific Research and Discoveries #Stellar, planetary, and galactic studies #astro-ph

paper · pdf · doi:10.1086/382178

published as Astrophys.J. 605 (2004) 179-182 · 8 pages, Postscript, 1 figure, accepted in ApJ

arxiv created 2003/12/19 · openalex publication_date 2004/04/07 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31

Abstract

There is apparently a widespread belief that the gravitational field (and subsequently the rotation curve) "inside" razor-thin, axially symmetric disks cannot be determined accurately from elliptic integrals because of the singular kernel in the Poisson integral. Here we report a simple and powerful method to achieve this task numerically using the technique of "density splitting."

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