Flow speed inside the brightness boundary of coronal streamers

被引：7

作者：

Suess, ST

Nerney, S

机构：

[1] NASA, George C Marshall Space Flight Ctr, Huntsville, AL 35812 USA

[2] Ohio Univ, Dept Phys, Lancaster, OH 43130 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2006年 / 33卷 / 10期

关键词：

D O I：

10.1029/2006GL026182

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Density measurements in the legs of coronal streamers, where there might be outflow, are reproduced here using a magnetohydrodynamic model of the flow inside the brightness boundary of streamers. The model returns values for the flow speed and stream tube geometry (spreading) between the base and a few solar radii. The flow speed is consistent with there being no measurable outflow below 2.5 R. and an outflow of similar to 100 km/s at 5 R.. We briefly describe the model, observations, and physical interpretation.

引用

页数：4

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