INVARIANTS AND GEOMETRIC STRUCTURES IN NONLINEAR HAMILTONIAN MAGNETICRECONNECTION

Authors
CAFARO E GRASSO D PEGORARO F PORCELLI F SALUZZI A
Citation
E. Cafaro et al., INVARIANTS AND GEOMETRIC STRUCTURES IN NONLINEAR HAMILTONIAN MAGNETICRECONNECTION, Physical review letters, 80(20), 1998, pp. 4430-4433
Citations number
20
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
80
Issue
20
Year of publication
1998
Pages
4430 - 4433
Database
ISI
SICI code
0031-9007(1998)80:20<4430:IAGSIN>2.0.ZU;2-9
Abstract
Collisionless magnetic reconnection in a two dimensional plasma is ana lyzed, using a two-fluid model where electron mass and pressure effect s are important. Numerical simulations show the formation of current a nd vorticity layers along two branches crossing at the stagnation poin t of the plasma flow. These structures are interpreted on the basis of the Hamiltonian Casimirs (conserved fields) of the fluid plasma model .