Cascade and intermittency model for turbulent compressible self-gravitating matter and self-binding phase-space density fluctuations

Details Cascade and intermittency model for turbulent compressible self-gravitating matter and self-binding phase-space density fluctuations Cascade and intermittency model for turbulent compressible self-gravitating matter and self-binding phase-space density fluctuations

Oct 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988phrvl..61.1716b&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 61, Oct. 10, 1988, p. 1716-1719.

Astronomy and Astrophysics

Astronomy

7

Astronomical Models, Collisionless Plasmas, Gravitational Effects, Interstellar Matter, Magnetohydrodynamic Turbulence, Turbulence Models, Density (Mass/Volume), Density Wave Model, Dynamic Models, Molecular Clouds, Virial Theorem

Scientific paper

A simple physical model for the turbulence dynamics and spectra of both the density fluctuations in compressible self-gravitating matter and self-binding phase-space density fluctuations is proposed. It is noted that both systems tend to self-organize into hierarchical structures via the mechanism of Jeans collapse. The model features a cascade constrained by the physical requirement of quasi-virialization, and it exhibits interesting geometric properties such as intrinsic intermittency and anisotropy.

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