Computer modeling of fast collisionless reconnection

Conference · Sun Jan 01 04:00:00 EST 1984

OSTI ID:5267914

Leboeuf, J N; Brunel, F; Tajima, T; Sakai, J; Wu, C C; Dawson, J M

Particle simulations of collisionless tearing, reconnection and coalescence of magnetic fields for a sheet-pinch configuration show that reconnection is Sweet-Parker like in the tearing and island formation phase. It is much faster to explosive in the island coalescence state. Island coalescence is the most energetic process and leads to large ion temperature increase and oscillations in the merged state. Similar phenomena have been observed in equivalent MHD simulations. Coalescence and its effects, as observed in our simulations, may explain many of the features of solar flares and coronal x-ray brightening.

• Research Organization: Texas Univ., Austin (USA). Inst. for Fusion Studies; Toyama Univ. (Japan); California Univ., Los Angeles (USA). Dept. of Physics
• DOE Contract Number: FG05-80ET53088
• OSTI ID: 5267914
• Report Number(s): DOE/ET/53088-112; CONF-8310229-9; ON: DE84006714
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
COLLISIONLESS PLASMA
COMPUTERIZED SIMULATION
ELECTROMAGNETIC RADIATION
INSTABILITY
ION TEMPERATURE
IONIZING RADIATIONS
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC ISLANDS
PLASMA
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
PLASMA SIMULATION
RADIATIONS
SIMULATION
SOLAR ACTIVITY
SOLAR FLARES
TEARING INSTABILITY
X RADIATION