Properties of the hierarchy of interstellar magnetic clouds

Details Properties of the hierarchy of interstellar magnetic clouds Properties of the hierarchy of interstellar magnetic clouds

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991azh....68..695d&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 68, July-Aug. 1991, p. 695-708. In Russian.

Astronomy and Astrophysics

Astronomy

6

Interstellar Matter, Magnetic Clouds, Magnetohydrodynamic Stability, Molecular Clouds, Angular Velocity, Interstellar Magnetic Fields, Magnetohydrodynamic Turbulence

Scientific paper

Observational data on the magnetic field, velocity dispersion, and rotation associated with the star formation on molecular clouds are analyzed. The influence of compressibility, intermittency, and magnetic field on the spectral index of turbulence is assessed. The gravitational MHD instabilities in self-gravitating sheets, cylinders, and spheres are considered. It is shown that the hierarchical sequence - superclouds, cloud complexes, and molecular and protostellar clouds - is based on changes in the exponents of scaling relations for velocity dispersion and dimension, for magnetic field and density, and for angular velocity and dimension.

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