On the determination of distribution functions by numerical methods

Details On the determination of distribution functions by numerical methods On the determination of distribution functions by numerical methods

Feb 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...337..155b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004- 637X), vol. 337, Feb. 1, 1989, p. 155-162.

Statistics

Computation

2

Astronomical Models, Computational Astrophysics, Distribution Functions, Galactic Structure, Stellar Motions, Linear Programming, Mass, Numerical Stability

Scientific paper

Various numerical methods used to construct models of galaxies are examined by exploring the numerical solutions of two analytic models: the radial orbit Jaffe model and the self-gravitating slab. In order to evaluate the accuracy of solutions, it is often necessary to examine an observable such as the velocity dispersion in addition to the resulting numerical solution of the distribution function. The stability of these numerical methods in the presence of noise is investigated.

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