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X-point collapse and saturation in the nonlinear tearing mode reconnection.

Abstract:

We study the nonlinear evolution of the resistive tearing mode in slab geometry in two dimensions. We show that, in the strongly driven regime (large delta'), a collapse of the X point occurs once the island width exceeds a certain critical value approximately 1/delta'. A current sheet is formed and the reconnection is exponential in time with a growth rate proportional eta(1/2), where eta is the resistivity. If the aspect ratio of the current sheet is sufficiently large, the sheet can itself...

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Publication status:
Published

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Authors


Loureiro, NF More by this author
Cowley, SC More by this author
Dorland, WD More by this author
Haines, MG More by this author
Schekochihin, AA More by this author
Journal:
Physical review letters
Volume:
95
Issue:
23
Pages:
235003
Publication date:
2005-12-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:a519e68f-908e-4b95-8e8d-394f4ed7b94b
Source identifiers:
160045
Local pid:
pubs:160045
Language:
English
Keywords:

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