Fractal time statistics of AE-index burst waiting times:: evidence of metastability

被引:24
作者
Consolini, G [1 ]
De Michelis, P
机构
[1] CNR, Inst Fis Spazio Interplanetario, Rome, Italy
[2] Ist Nazl Geofis & Vulcanol, Rome, Italy
关键词
D O I
10.5194/npg-9-419-2002
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Recent observations and analyses evidenced that the magnetotail, as well as the magnetospheric dynamics are characterised by a scale-free behaviour and intermittence. These results, along with numerical simulations on cellular automata, suggest that the observed scale-invariance may be due to forced and/or self-organised criticality (FSOC), meaning that the magnetotail operates near a marginally stable state (Chang, 1999). On the other hand, it was underlined that a complex magnetic field topology in the geotail regions may play a relevant role in the impulsive energy relaxation (Consolini and Chang, 2001).
引用
收藏
页码:419 / 423
页数:5
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