| N-body simulations in astronomy form a challenging set of initial value problems for numerical integrators. The challenge comes from the variety of problems and their size - one recent simulation required 300 million second order equations, another 90 thousand million integration steps. <p> A number of integrators for specific types of simulations are available. We investigate what is required of an integrator intended to efficiently perform a wide range of N-body simulations. |
Keywords
N-body integrator, efficiency, requirements
Math Review Classification
Primary 70F10, 85-04
; Secondary 65L05
Last Updated
May 04, 2000
Length
12 pages
Availability
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