Two–Current‐Sheet Reconnection Model of Interdependent Flare and Coronal Mass Ejection | Zendy

Y. Z. Zhang | Zendy; Jingang Wang | Zendy; Yin Hu | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Two–Current‐Sheet Reconnection Model of Interdependent Flare and Coronal Mass Ejection

Author(s) -

Y. Z. Zhang,

Jingang Wang,

Yin Hu

Publication year - 2006

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/500424

Subject(s) - current sheet , physics , rope , magnetic reconnection , coronal mass ejection , flare , flux (metallurgy) , solar flare , astrophysics , breakout , magnetohydrodynamics , magnetic flux , mechanics , transverse plane , current (fluid) , magnetic field , structural engineering , solar wind , engineering , materials science , finance , quantum mechanics , economics , metallurgy , thermodynamics

Time-dependent resistive magnetohydrodynamic simulations are carried out tostudy a flux rope eruption caused by magnetic reconnection with implication incoexistent flare-CME (coronal mass ejection) events. An early result obtainedin a recent analysis of double catastrophe of a flux rope system is used as theinitial condition, in which an isolated flux rope coexists with two currentsheets: a vertical one below and a transverse one above the flux rope. The fluxrope erupts when reconnection takes place in the current sheets, and the fluxrope dynamics depends on the reconnection sequence in the two current sheets.Three cases are discussed: reconnection occurs (1) simultaneously in the twocurrent sheets, (2) first in the transverse one and then in the vertical, and(3) in an order opposite to case 2. Such a two-current-sheet reconnectionexhibits characteristics of both magnetic breakout for CME initiation andstandard flare model. We argue that both breakout-like and tether-cuttingreconnections may be important for CME eruptions and associated surfaceactivities.Comment: 10 pages, 4 figures, Accepted for publication in ApJ 200

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research