Current sheet formation and rapid reconnection in the solar corona

A. Bhattacharjee, Xiogang Wang

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

It is shown that a current sheet is formed in Parker's model of the solar corona from the requirement that magnetic helicity is conserved in the presence of a very small but finite plasma resistivity. The presence of dissipation permits slippage of field lines with respect to the plasma, and hence a current sheet can be formed in the presence of smooth photospheric flows. The structure of the current sheet encompasses a thin strip spanning two Y-points. It is shown that the rapid reconnection involved in the formation of the current sheet justifies the use of helicity conservation. Implications for coronal heating and numerical simulations of the corona are discussed.

Original languageEnglish (US)
Pages (from-to)321-328
Number of pages8
JournalAstrophysical Journal
Volume372
Issue number1
DOIs
StatePublished - May 1 1991

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • Hydromagnetics
  • Magnetic fields
  • Sun: corona

Fingerprint Dive into the research topics of 'Current sheet formation and rapid reconnection in the solar corona'. Together they form a unique fingerprint.

Cite this