On the Effects of Including Conterrotating Angular Momentum in Simulations of Galactic Disk Systems

Details On the Effects of Including Conterrotating Angular Momentum in Simulations of Galactic Disk Systems On the Effects of Including Conterrotating Angular Momentum in Simulations of Galactic Disk Systems

Jul 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997apj...484...79d&link_type=abstract

Astrophysical Journal v.484, p.79

Astronomy and Astrophysics

Astronomy

16

Galaxies: Evolution, Galaxies: Kinematics And Dynamics, Galaxies: Structure, Instabilities

Scientific paper

We describe the evolution of two-dimensional disk systems constructed with significant portions of their angular momentum counterrotating. We confirm that counterrotating angular momentum stabilizes an otherwise bar unstable disk. Further, we show that is possible to realize novel bar/disk and bar/bar configurations by varying our initial conditions. We find that it is possible to construct models that evolve to the following configurations: two counterrotating bars, a cospatial bar and bulgelike component, and a slow counterrotating bar. We examine the possible implications of such systems and whether they might exist in nature.

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