Statistics – Computation
Scientific paper
Jan 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...403..110c&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 403, no. 1, p. 110-126.
Statistics
Computation
8
Astronomical Models, Computational Astrophysics, Dynamic Models, Galactic Evolution, Galactic Halos, Computerized Simulation, Galactic Nuclei, Galactic Structure
Scientific paper
Results of an experimental study of gaseous galaxy disks that evolve under the influence of an external halo potential are presented. The numerical experiments, which employ a fully 3D Eulerian hydrodynamical computer code, involve the simplest possible initial conditions: the disks are massless and the external potential is either oblate or prolate spheroidal and nontumbling. For small halo distortions and low initial inclinations, the disk identifies the symmetry plane of the halo as the preferred plane and settles to it, developing a warped and twisted structure in the process. As disks with higher initial inclinations are considered, matter inflow to the nuclear region of the potential becomes increasingly important relative to settling toward the preferred plane, and it dominates at moderate inclinations.
Christodoulou Dimitris M.
Tohline Joel E.
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