摘要: The gravitational field of a barred spiral galaxy is described by simple model consisting two variable components: central or nuclear disk and homogeneous triaxial spheroid: one fixed component: an extended halo. characterized five free dimensionless parameters: the ratio bar mass to mass, axial ratios spheroid, length scale spheroid semimajor axis, corotation radius in units axis. Two-dimensional, time-dependent gas dynamical calculations are carried out resulting from this order generate grid hydrodynamical models on five-dimensional parameter space. It found that over well-defined domain space, steady-state density velocity distributions resemble observed morphology kinematics actual SBb galaxies.
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