摘要翻译:
日冕是一个复杂的系统,具有非等温等离子体,处于太阳的自引力场中。因此,电晕等离子体不仅是一个非平衡系统,而且是一个非扩展系统。我们估计了描述日冕等离子体非延展性程度的参数,并在非延展性统计力学框架下研究了太阳风速度理论的推广。研究发现,当采用Chapman日冕模型(1957)作为日冕温度的径向分布时,不伸展性降低了向外的气体压力,从而对太阳风的径向速度产生了显著的减速效应。
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英文标题:
《Solar wind speed theory and the nonextensivity of solar corona》
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作者:
Jiulin Du and Yeli Song
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最新提交年份:
2008
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分类信息:
一级分类:Statistics 统计学
二级分类:Statistics Theory 统计理论
分类描述:stat.TH is an alias for math.ST. Asymptotics, Bayesian Inference, Decision Theory, Estimation, Foundations, Inference, Testing.
Stat.Th是Math.St的别名。渐近,贝叶斯推论,决策理论,估计,基础,推论,检验。
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一级分类:Physics 物理学
二级分类:Statistical Mechanics 统计力学
分类描述:Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变,热力学,场论,非平衡现象,重整化群和标度,可积模型,湍流
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一级分类:Physics 物理学
二级分类:Space Physics 空间物理学
分类描述:Space plasma physics. Heliophysics. Space weather. Planetary magnetospheres, ionospheres and magnetotail. Auroras. Interplanetary space. Cosmic rays. Synchrotron radiation. Radio astronomy.
空间等离子体物理。太阳物理学。太空气象。行星磁球、电离层和磁尾。极光。行星际空间。宇宙射线。同步辐射。射电天文学。
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英文摘要:
The solar corona is a complex system, with nonisothermal plasma and being in the self-gravitating field of the Sun. So the corona plasma is not only a nonequilibrium system but also a nonextensive one. We estimate the parameter of describing the degree of nonextensivity of the corona plasma and study the generalization of the solar wind speed theory in the framework of nonextensive statistical mechanics. It is found that, when use Chapman's corona model (1957) as the radial distribution of the temperature in the corona, the nonextensivity reduces the gas pressure outward and thus leads a significant deceleration effect on the radial speed of the solar wind.
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PDF链接:
https://arxiv.org/pdf/802.217


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