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Titolo:
The simulation of the coronal mass ejection-shock system in the inner corona
Autore:
Zhang, BC; Wang, JF;
Indirizzi:
Wuhan Univ, Dept Space Phys, Wuhan 430072, Peoples R China Wuhan Univ Wuhan Peoples R China 430072 s, Wuhan 430072, Peoples R China
Titolo Testata:
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
fascicolo: A6, volume: 105, anno: 2000,
pagine: 12593 - 12603
SICI:
0148-0227(20000601)105:A6<12593:TSOTCM>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
WHITE-LIGHT BRIGHTNESS; MAGNETIC RECONNECTION; GEOMAGNETIC-ACTIVITY; SOLAR; TRANSIENTS; DENSITY; FLUX; ATMOSPHERE; EVOLUTION; PLANE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
28
Recensione:
Indirizzi per estratti:
Indirizzo: Zhang, BC Polar Res Inst China, 451 Jinqiao Rd, Shanghai 200129, Peoples RChina Polar Res Inst China 451 Jinqiao Rd Shanghai Peoples R China 200129
Citazione:
B.C. Zhang e J.F. Wang, "The simulation of the coronal mass ejection-shock system in the inner corona", J GEO R-S P, 105(A6), 2000, pp. 12593-12603

Abstract

In the concept that coronal mass ejections (CME) are usually originated inlarge closed magnetic field regions which are found in the coronal streamer belt near the solar surface, we have used a thermal driving force so strong that portions of the closed magnetic fields were carried away by the strong disturbance. A CME-shock system is obtained in the inner corona. The "legs" of loop-like CMEs are again obtained at the interface between the coronal open and closed magnetic fields. However, there is no counterpart in outer space. The shock is a combined one with an intermediate shock near the equator at its early stage. Ultimately, it becomes a pure fast shock. A plasmoid with higher density and bubble-like magnetic fields is formed behind the MHD shock wave. It propagates at high speed. The results show that the high-speed plasmoid does not propel the MHD shock in front of it; rather, the plasmoid forms behind die MHD shock.

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Documento generato il 25/09/20 alle ore 00:19:38