Extensions and applications of the iterative method

Abstract

Aims: We aim to develop an algorithm for constructing equilibrium initial conditions for simulations of disk galaxies with a triaxial halo and/or a gaseous component. This will pave the way for N-body simulations of realistic disk galaxies. Methods: We use the iterative method, which we presented in a previous article. The idea of this method is very simple. It relies on constrained evolution. Results: We develop an algorithm for constructing equilibrium models of disk galaxies including a gaseous disk and a triaxial or axisymmetric halo. We discuss two test models. The first model consists of a spherical halo, a stellar disk, and an isothermal gaseous disk. The second model consists of a triaxial halo, a stellar disk, and a star-forming gaseous disk. We demonstrate that both test models are very close to equilibrium, as we had intended.

9 pages, 6 figures, published in A&A

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Cited by in corpus (5)

• Bar formation and evolution in disc galaxies with gas and a triaxial halo: Morphology, bar strength and halo properties
• On the nature of the barlens component in barred galaxies: what do boxy/peanut bulges look like when viewed face-on?
• Spiral arm pitch angle and galactic shear rate in N-body simulations of disc galaxies
• Orbits of radial migrators and non-migrators around a spiral arm in N-body simulations
• GalactICS with Gas