Open AccessSimulations of spheroidal systems with substructure: trees in fields
Author(s) -
Vine S.,
Sigurdsson S.
Publication year - 1998
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.1998.01325.x
Subject(s) - physics , substructure , code (set theory) , component (thermodynamics) , field (mathematics) , astrophysics , statistical physics , computational science , theoretical physics , computer science , programming language , pure mathematics , structural engineering , engineering , mathematics , set (abstract data type) , thermodynamics
We present a hybrid technique of N ‐body simulation to deal with collisionless stellar systems having an inhomogeneous global structure. We combine a treecode and a self‐consistent field code such that each of the codes models a different component of the system being investigated. The treecode is suited to treatment of dynamically cold or clumpy components, which may undergo significant evolution within a dynamically hot system. The hot system is appropriately evolved by the self‐consistent field code. This combined code is particularly suited to a number of problems in galactic dynamics. Applications of the code to these problems are briefly discussed.