Potential-density pairs for galaxy discs with exponential or sech$^2$ vertical profile
Astrophysics of Galaxies
2025-01-14 v1
Abstract
We present axially symmetric analytical potential-density pairs with surface density similar to the Miyamoto-Nagai model, but with more realistic vertical structure. Our models closely approximate an exponential, a sech, or a cored exponential vertical density profile. The latter profile has a density core of adjustable width, which provides more flexibility when modelling galaxy discs.
Cite
@article{arxiv.2501.05916,
title = {Potential-density pairs for galaxy discs with exponential or sech$^2$ vertical profile},
author = {Walter Dehnen and Shera Jafaritabar},
journal= {arXiv preprint arXiv:2501.05916},
year = {2025}
}
Comments
8 pages, accepted by the Open Journal of Astrophysics