Hydrodynamics of a highly flattened galaxy, based on the collisionless Boltzmann equation

Details Hydrodynamics of a highly flattened galaxy, based on the collisionless Boltzmann equation Hydrodynamics of a highly flattened galaxy, based on the collisionless Boltzmann equation

Jul 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...148....1a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 148, no. 1, July 1985, p. 1-11.

Astronomy and Astrophysics

Astrophysics

5

Boltzmann Transport Equation, Density Wave Model, Galactic Evolution, Galactic Structure, Hydrodynamic Equations, Spiral Galaxies, Adiabatic Conditions, Galactic Rotation, Perturbation Theory, Polytropic Processes, Velocity Distribution

Scientific paper

The collisionless Boltzmann equation is used to derive hydrodynamical equations to describe a highly-flattened galaxy. Each latter hydrodynamic equation can be obtained by taking a moment of the Boltzmann equation. The closure problem can be resolved by neglecting higher order moments under the assumption of small-pressure. Here the author has neglected moments of higher than fourth order (or fifth degree). This assumption causes the polytropic exponent Γ equal to 2 for perturbation from an equilibrium state. This is interpreted as the adiabatic case of two-dimensional dynamics.

Affiliated with

Also associated with

No associations

Rating

Hydrodynamics of a highly flattened galaxy, based on the collisionless Boltzmann equation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Hydrodynamics of a highly flattened galaxy, based on the collisionless Boltzmann equation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrodynamics of a highly flattened galaxy, based on the collisionless Boltzmann equation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1230384