Plasma (Accretion) Disks with High Magnetic Energy Densities

Details Plasma (Accretion) Disks with High Magnetic Energy Densities Plasma (Accretion) Disks with High Magnetic Energy Densities

Apr 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aps..apr.d1031r&link_type=abstract

American Physical Society, APS April Meeting, April 22-26, 2006, abstract #D1.031

Physics

Scientific paper

``Corrugated'' plasma disks can form in the dominant gravity of a central object when the peak plasma pressure in the disk is of the same order as that of the pressure of the ``external'' magnetic field, while the magnetic field resulting from internal plasma currents is of the same order as the external field. The corrugation refers to a periodic variation of the plasma density in a region around the equatorial plane. The considered structure represents a transition between a ``classical'' accretion disk and a ``rings sequence'' configuration^2. The common feature of the ``corrugated'' and the ``rings sequence'' configurations is the ``crystal'' structure of the magnetic surfaces that consist of a sequence of pairs of oppositely directed toroidal current density filaments. The connection between the characteristics of these configurations and those of the marginally stable ballooning modes that can be found in a model accretion disk is pointed out and analyzed.

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