SHINE Postdoc: Signatures of Heliospheric Topology
SHINE Postdoc: Signatures of Heliospheric Topology
批准号:
0327739
负责人:
Nancy Crooker
金额:
$0.0万
依托单位国家:
美国
项目类别:
Continuing grant
财政年份:
2003
资助国家:
美国
项目状态:
已结题
起止时间:
2003-09-01 至 2005-08-31
中文摘要
这项研究将重点关注的物理现象,引起的签名,在人口的太阳风电子通常被称为“热通量下降”(HFD)。了解导致HFD的原因很重要,因为磁场线与太阳断开的程度是一种诊断工具,能够区分太阳磁场在22年太阳周期中如何逆转的竞争模型。将进行数据分析和理论的程序。调查的HFD数据从风航天器将提供一个基础的统计研究HFD频率和形态的背景下,太阳风结构。一个互补的合作理论研究将解决的问题,是否俯仰角各向同性的HFD是由于不稳定性敏感的等离子体β,独立的总通量的变化。
英文摘要
This study will focus on the physical phenomena that give rise to a signature in the population of solar wind electrons commonly referred to as a "heat flux dropout" (HFD). Understanding what causes HFDs is important because the degree to which magnetic field lines are disconnected from the sun is a diagnostic tool capable of distinguishing between competing models of how the sun's magnetic field reverses over the course of the 22-year solar cycle. A program of data analysis and theory will be performed. A survey of HFD data from the Wind spacecraft will provide a base for statistical studies of HFD frequency and morphology in the context of solar wind structures. A complementary collaborative theoretical study will address the question of whether pitch-angle isotropy in the HFDs is attributable to instabilities sensitive to the plasma beta, independent of variations in the total flux.
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会议论文
SHINE: Studies of the Heliospheric Magnetic Field and Slow Solar Wind
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批准号:0962645
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项目类别:Standard Grant
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资助金额:$24.53万
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财政年份:2010
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负责人:Nancy Crooker
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依托单位:
International Heliophysical Year (IHY) Chapman Conference on Universal Heliophysical Processes; Savannah, Georgia; November 10-14, 2008
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批准号:0845554
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项目类别:Standard Grant
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资助金额:$0.0万
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财政年份:2008
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负责人:Nancy Crooker
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依托单位:
SHINE: Studies of ICME-CME Connections and Implications for Heliospheric Topology
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批准号:0553397
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项目类别:Continuing grant
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资助金额:$0.0万
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财政年份:2006
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负责人:Nancy Crooker
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依托单位:
Solar Wind Streamer Belt Morphology
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批准号:0119700
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项目类别:Standard Grant
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资助金额:$0.0万
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财政年份:2001
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负责人:Nancy Crooker
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依托单位:
Shine Workshop Coordination
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批准号:0000423
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项目类别:Continuing grant
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资助金额:$0.0万
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财政年份:2000
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负责人:Nancy Crooker
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依托单位:
SHINE Workshop Coordination; Boulder, Colorado; June 14-19, 1999
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批准号:9819483
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项目类别:Standard Grant
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资助金额:$0.0万
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财政年份:1999
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负责人:Nancy Crooker
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依托单位:
Coronal Streamer Belt Morphology
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批准号:9805064
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项目类别:Continuing grant
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资助金额:$0.0万
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财政年份:1998
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负责人:Nancy Crooker
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依托单位:
Coronal Streamer Belt Morphology
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批准号:9421814
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项目类别:Continuing grant
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资助金额:$0.0万
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财政年份:1995
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负责人:Nancy Crooker
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依托单位:
GEM: CUSP Currents and Magnetopause Models
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批准号:9112434
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项目类别:Continuing Grant
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资助金额:$11.98万
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财政年份:1991
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负责人:Nancy Crooker
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依托单位:
Travel to Attend: Chapman Conference on Magnetospheric Boundary Layers; Tyrol, Austria; June 11-15, 1979
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批准号:7912520
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项目类别:Standard Grant
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资助金额:$0.13万
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财政年份:1979
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负责人:Nancy Crooker
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依托单位:
海外基金