3-d evolution of solar wind streams and suprathermal particles

太阳风流和超热粒子的 3 维演化

• 批准号: 64101029
• 负责人: Professor Dr. Robert F. Wimmer-Schweingruber
• 金额: --
• 依托单位: Institut für Experimentelle und Angewandte Physik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2011-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/64101029?language=en
• 关键词: evolution; solar; wind; streams; suprathermal

We will address the origin of the fast and slow solar wind and quantify the relative importance of coronal-hole size and superradial expansion factor in determining fast wind speed and composition and search for other determining factors, such as wave activity. We will test two hypotheses for the origin of the slow wind, that it originates at the edges of coronal holes and that it originates in active regions by mapping back in-situ observations to solar and coronal features and correlating their spatio-temporal behavior with in-situ data. We will investigate the large-scale structure and the solar and coronal origin of interfaces and discontinuities in the solar wind and their evolution based on three-or-more-point studies with data from the twin Solar TErrestrial RElations Observatory (STEREO) and the Advanced Composition Explorer (ACE) spacecraft. We will also use the unique opportunity offered by Ulysses’ quadratures in winters 07 and 08 to determine the extent of out-of-ecliptic superradial expansion of coronal holes.

我们将讨论快慢太阳风的起源，量化日冕洞大小和超径向膨胀因子在决定快风速和成分方面的相对重要性，并寻找其他决定因素，如波浪活动。我们将测试慢风起源的两种假设，即它起源于日冕洞的边缘，以及它起源于活动区域，通过将太阳和日冕特征的现场观测数据与现场数据相关联，并将它们的时空行为联系起来。我们将利用双日地关系天文台（STEREO）和高级成分探测器（ACE）航天器的三点或多点研究数据，研究太阳风界面和不连续面的大尺度结构、太阳和日冕起源及其演变。我们还将利用2007年和2008年冬季尤利西斯四分仪提供的独特机会来确定日冕洞的黄道外超径向膨胀的程度。

项目成果

Observations of interstellar neon in the helium focusing cone

氦聚焦锥中星际氖的观测

• DOI: 10.1029/2010ja015585
• 期刊: Journal of Geophysical Research
• 作者: L. Berger;R. F. Wimmer-Schweingruber;A. B. Galvin;B. Klecker;E. M¨bius
• 通讯作者: E. M¨bius

3D velocity distribution functions of heavy ions and kinetic properties of O6+ at 1 AU

1 AU 重离子的 3D 速度分布函数和 O6 的动力学性质

• DOI: 10.1063/1.3395849
• 作者: Berger;R. F. Wimmer-Schweingruber;G. Gloeckler
• 通讯作者: G. Gloeckler

Inner‐Source Pickup Ions as Sensitive Probes to the Inner‐Heliospheric Micro‐State

内源拾取离子作为内日光层微态的敏感探针

• DOI: 10.1063/1.3395913
• 发表时间: 2010
• 作者: Wimmer-Schweingruber;P. Bochsler
• 通讯作者: P. Bochsler

Open Issues in Heliospheric Physics

日光层物理学中的未决问题

• DOI: 10.1007/s11038-008-9266-7
• 发表时间: 2009
• 期刊: Earth, Moon, and Planets
• 作者: Wimmer-Schweingruber

Systematic measurements of ion-proton differential streaming in the solar wind.

• DOI: 10.1103/physrevlett.106.151103
• 发表时间: 2011-04
• 期刊: Physical review letters
• 影响因子: 8.6
• 作者: L. Berger;R. Wimmer–Schweingruber;G. Gloeckler