VARIABILITY OF PLASMA IN THE HELIOSHEATH

	VARIABILITY OF PLASMA IN THE HELIOSHEATH
	Richardson, J. D.
刊名	ASTROPHYSICAL JOURNAL
	2011
卷号	740 期号:2 页码:113
关键词	interplanetary medium
ISSN号	0004-637X
通讯作者	Richardson, JD (reprint author), MIT, Kavli Ctr Astrophys & Space Res, 77 Massachusetts Ave, Cambridge, MA 02139 USA.
中文摘要	The heliosheath is the shocked solar wind between the termination shock and the heliopause. Plasma properties are highly variable in this region, with factor-of-two variations of density and thermal speed on timescales from tens of minutes to hours to days. Gaussian distributions fit all the heliosheath plasma data well and are used to quantify these variations. We show that these fits can be used to compensate for data lost due to cutoffs in the instrument response and show that the flow angle in the RT plane is about 50% larger than previous determinations. The turbulent component of the flow has about 25% of the flow energy in the heliosheath, but this energy is not a significant percentage of the upstream solar wind flow energy.
英文摘要	The heliosheath is the shocked solar wind between the termination shock and the heliopause. Plasma properties are highly variable in this region, with factor-of-two variations of density and thermal speed on timescales from tens of minutes to hours to days. Gaussian distributions fit all the heliosheath plasma data well and are used to quantify these variations. We show that these fits can be used to compensate for data lost due to cutoffs in the instrument response and show that the flow angle in the RT plane is about 50% larger than previous determinations. The turbulent component of the flow has about 25% of the flow energy in the heliosheath, but this energy is not a significant percentage of the upstream solar wind flow energy.
学科主题	空间物理
收录类别	SCI
资助信息	Jet Propulsion Laboratory [959203]; Specialized Research Fund for State Key Laboratories of China [NNX08AE49G, NNSFC 40921063]
语种	英语
公开日期	2014-12-15
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/3184]
专题	国家空间科学中心_空间科学部
推荐引用方式 GB/T 7714	Richardson, J. D.. VARIABILITY OF PLASMA IN THE HELIOSHEATH[J]. ASTROPHYSICAL JOURNAL,2011,740(2):113.
APA	Richardson, J. D..(2011).VARIABILITY OF PLASMA IN THE HELIOSHEATH.ASTROPHYSICAL JOURNAL,740(2),113.
MLA	Richardson, J. D.."VARIABILITY OF PLASMA IN THE HELIOSHEATH".ASTROPHYSICAL JOURNAL 740.2(2011):113.