Self-consistent magnetostatic structures in astrophysical plasmas with arbitrary energy distribution of particles

Kocharovsky Vl.V. (1), Kocharovsky V.V. (1,2), Martyanov V. Ju. (3)

(1) Institute of Applied Physics RAS, Russia
(2) Texas A&M University, USA
(3) ZAO “Intel” A/O, Russia

We analytically find a new broad class of neutral current configurations in collisionless multicomponent plasma, relativistic or not. It allows for a functional freedom to choose particle distribution functions and spatial profiles of corresponding magnetic field, greatly overcovering the majority of known analytical results. We describe their general properties and obtain a number of new planar, and cylindrical magnetostatic structures (localized and delocalized), which are self-consistent with inhomogeneous anisotropic particle distributions with essentially arbitrary energy profiles. Such solutions are valuable for analysis of physical properties of current sheets and filaments, including their synchrotron radiation, the current localization and value, the degree of anisotropy of particle distribution, and possible equipartition of particle and magnetic energy densities. In particular, the results may be applied to the problem of long-living magnetic field in astrophysical collisionless plasma for various dynamical structures, e.g., shocks, winds, jets, and accretion disks. 
We acknowledge support from RFBI (grant 08-02-00163-a) and from the council on grants of the President of the Russian Federation for support of the Russian leading scientific schools (grant HIII-4485.2008.2).

1. V.Ju. Martyanov, V.V. Kocharovsky, and Vl.V. Kocharovsky, JETP, 107, 1049 (2008).
2. V.V. Kocharovsky, Vl.V. Kocharovsky, and V.Ju. Martyanov, Radiophysics and Quantum Electronics, 52, n.2, 79 (2009).
3. V.Yu. Martyanov, V.V. Kocharovsky, and Vl.V. Kocharovsky, Astronomy Letters, 36, 396 (2010).
4. V.V. Kocharovsky, Vl.V. Kocharovsky, and V.Ju. Martyanov, Phys.Rev.Lett., 104, n.21 , 215002 (2010).