Condensations in a self-gravitating flow: from gravito-acoustic waves to bound structures

Details Condensations in a self-gravitating flow: from gravito-acoustic waves to bound structures Condensations in a self-gravitating flow: from gravito-acoustic waves to bound structures

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...272..555c&link_type=abstract

Astronomy and Astrophysics, Vol. 272, p. 555 (1993)

Astronomy and Astrophysics

Astrophysics

5

Gravitation, Hydrodynamics, Turbulence, Interstellar Medium: Kinematics And Dynamics

Scientific paper

To understand the transition in the interstellar medium from a diffuse distribution of matter to a more clumpy distribution, we study the evolution of a set of self-gravitating polytropic vortices via two-dimensional numerical simulations. The relevant parameters are the Mach, Jeans and Reynolds numbers. By increasing the Jeans number up to unity, the departure from quasi-linear gravito-acoustic oscillations is followed and the formation of transient or stable condensations around critical points of the flow arc observed.

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