Physics
Scientific paper
Oct 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..799..379j&link_type=abstract
NEW VISTAS IN DUSTY PLASMAS: Fourth International Conference on the Physics of Dusty Plasmas. AIP Conference Proceedings, Volum
Physics
2
Dusty Plasmas, Plasma Magnetohydrodynamics, Astrophysical Plasma, Magnetosphere, Dusty Or Complex Plasmas, Plasma Crystals, Magnetohydrodynamics And Plasmas, Magnetohydrodynamics, Magnetic Reconnection
Scientific paper
The fine structure of cometary tails (swirls, loops and blobs) is studied in the framework of resistive magnetic reconnection without a guide field in a dusty plasma. For a high-beta plasma (β ~ 1) consisting of electrons, ions, and immobile dust grains, a two-fluid description is used to study electromagnetic perturbations with the frequency below Ωi, propagating at an arbitrary angle, and including the effects of Hall current. A zero-order current associated with the anti-parallel magnetic configuration may exist even in the limit of zero plasma temperature in a dusty plasma due to a symmetry breaking between electrons and ions by dust grains that yields an Evec × Bvec current. In the perturbed state, a new linear electromagnetic mode is found in dusty plasma which is evanescent below the Rao cut-off frequency and has the characteristic wavelength comparable to the ion skin depth, which enables the reconnection at short spatial scales. The role of the dust is found to be twofold, yielding a new mode outside of the current sheet and altering the continuity conditions at its edge by an inhomogeneous Doppler shift associated with the Evec × Bvec current.
Jovanovic Dusan
Kant Shukla Padma
Morfill Gregor
No associations
LandOfFree
Hall MHD reconnection in cometary magnetotail does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Hall MHD reconnection in cometary magnetotail, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hall MHD reconnection in cometary magnetotail will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1619489