Galactic hydrostatic equilibrium with magnetic tension and cosmic-ray diffusion

摘要: Three gravitational potentials differing in the content of dark matter Galactic plane are used to study structure z-distribution mass and pressure solar neighborhood. A P(0) roughly (3.9 + or - 0.6) x 10 -12th dyn/sq cm is obtained, with equal contributions from magnetic field, cosmic ray, kinetic terms. This boundary condition restricts both magnitude gravity high z-pressure. It favors lower higher values for probably pressures than have been popular past. Inclusion warm H(+) distribution carries a significant component into z about 1 kpc regime. 87 refs.