N-body simulations of self-gravitating gas in stationary fragmented state

Details N-body simulations of self-gravitating gas in stationary fragmented state N-body simulations of self-gravitating gas in stationary fragmented state

2000-07-10

arxiv.org/abs/astro-ph/0007119v1

Astronomy and Astrophysics

Astrophysics

LaTeX 10 pages, 7 figures. To be published in A&A. A version with nicer figure is available http://wwwusr.obspm.fr/departeme

Scientific paper

The interstellar medium is observed in a hierarchical fractal structure over several orders of magnitude in scale. Aiming to understand the origin of this structure, we carry out numerical simulations of molecular cloud fragmentation, taking into account self-gravity, dissipation and energy input. Self-gravity is computed through a tree code, with fully or quasi periodic boundary conditions. Energy dissipation is introduced through cloud-cloud ineslatic collisions. Several schemes are tested for the energy input. It appears that energy input from galactic shear allows to achieve a stationary clumped state for the gas, avoiding final collapse. When a stationary turbulent cascade is established, it is possible to derive meaningful statistical studies on the data such as the fractal dimension of the mass distribution.

Affiliated with

Also associated with

No associations

Rating

N-body simulations of self-gravitating gas in stationary fragmented state 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 N-body simulations of self-gravitating gas in stationary fragmented state, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and N-body simulations of self-gravitating gas in stationary fragmented state will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-376597