AAS 199th meeting, Washington, DC, January 2002
Session 87. Interacting Galaxies
Display, Wednesday, January 9, 2002, 9:20am-6:30pm, Monroe/Lincoln

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[87.06] Convergence on N-body plus SPH

A. Antunes, J. Wallin (George Mason University)

Our goal is to create a flexible and accurate code for simulating interacting galaxies. The use of smoothed particle hydrodynamics for gas modeling along with straightforward gravitational solving for gravitational particles means that two-component models are easily created. We use our flexible 'mass99' N-Body code with SPH for gas dynamics using a variety of tree walks, acceptance criteria, particle types, timestep methods, SPH parameters, and the inevitable magic numbers. We wish to maximize numerical resolution while also choosing accurate SPH parameters to either simulate, or mimic, galactic gas dynamics. Looking at a stable single galaxy as well as a "Cartwheel" type collision, we can evaluate an SPH parameter matrix and converge on a 'best match' set of values, that can then be used for extrapolation and evolutionary studies of galactic systems.

If you would like more information about this abstract, please follow the link to http://science.gmu.edu/~aantunes. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.

The author(s) of this abstract have provided an email address for comments about the abstract: aantunes@science.gmu.edu

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