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OBSERVATIONS OF A SMALL INTERPLANETARY MAGNETIC FLUX ROPE ASSOCIATED WITH A MAGNETIC RECONNECTION EXHAUST
Feng, H. Q.; Wu, D. J.; 北京8701信箱
Department其他
Source PublicationAstrophysical Journal
2009
Volume705Issue:2Pages:1385-1387
ISSN0004-637X
Language英语
KeywordSolar-terrestrial Relations Solar Wind Sun: Magnetic Fields Heliospheric Current Sheet Solar-wind 1 Au Clouds Ejection Ulysses Plasma
AbstractA small interplanetary magnetic flux rope prior to an X-line magnetic reconnection exhaust was observed on 1998 March 25 at 1 AU. The X-line magnetic reconnection exhaust has been identified and reported by Gosling et al. The duration of this small magnetic flux rope is about 2 hr. We fitted the constant alpha force-free model to the observed magnetic fields. The model fitting results show that the spacecraft crosses the magnetic flux rope well away from the axis, with d(0)/R-0 being 0.76. The fitting results also show that its magnetic configuration is a right-handed helical flux rope, that the estimated field intensity at the axis is 16.3 nT, and that its diameter is 0.0190 AU. In addition, the axial direction of this rope is (theta = 6 degrees, theta = 214 degrees), namely, this magnetic flux rope is lying nearly in the ecliptic plane. According to the geometric relation of the small flux rope and the reconnection exhaust, it is very possible that the small magnetic flux rope has a larger scale initially and comes from the corona; its magnetic fields are peeled off when moving from the Sun to the Earth and at last it reaches a small scale. Though magnetic reconnection can produce a flux-rope topology, in this case the X-line magnetic reconnection is destroying rather than generating the small magnetic flux rope.
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/1701
Collection其他部室
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
Feng, H. Q.,Wu, D. J.,北京8701信箱. OBSERVATIONS OF A SMALL INTERPLANETARY MAGNETIC FLUX ROPE ASSOCIATED WITH A MAGNETIC RECONNECTION EXHAUST[J]. Astrophysical Journal,2009,705(2):1385-1387.
APA Feng, H. Q.,Wu, D. J.,&北京8701信箱.(2009).OBSERVATIONS OF A SMALL INTERPLANETARY MAGNETIC FLUX ROPE ASSOCIATED WITH A MAGNETIC RECONNECTION EXHAUST.Astrophysical Journal,705(2),1385-1387.
MLA Feng, H. Q.,et al."OBSERVATIONS OF A SMALL INTERPLANETARY MAGNETIC FLUX ROPE ASSOCIATED WITH A MAGNETIC RECONNECTION EXHAUST".Astrophysical Journal 705.2(2009):1385-1387.
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