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首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >Hypervelocity dust impacts on theWind spacecraft: Correlations between Ulysses andWind interstellar dust detections
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Hypervelocity dust impacts on theWind spacecraft: Correlations between Ulysses andWind interstellar dust detections

机译：超高速尘埃对风飞行器的影响：尤利西斯与风星际尘埃探测之间的相关性

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摘要

The Wind spacecraft is positioned just sunward of Earth at the first Lagrange point, while the Ulysses spacecraft orbits above and below the ecliptic plane crossing the ecliptic as far from the Sun as the orbit of Jupiter (~5 AU). While Wind does not carry a dedicated dust detector, we demonstrate the ability of Wind electric field measurements to detect hypervelocity dust impacts through their impact plasma signatures. Interstellar dust (ISD) and interplanetary dust particles are differentiated based on a yearly modulation of the ISD flux. Measurements of ISD flux variation by Wind are found to be in good agreement with ISD flux variation measured by Ulysses.While measurements of the ISD flow direction through the Solar System determined by Wind could not be directly compared to those from Ulysses, strong variation in ISD flow direction was observed during similar time periods by both spacecraft.
机译：风飞船位于拉格朗日第一个点的地球向阳处，而尤利西斯号飞船则在黄道平面的上方和下方运行，与黄道相交，并远离太阳，到达木星的轨道（约5 AU）。尽管风没有配备专用的灰尘检测器，但我们展示了风电场测量通过其撞击等离子体特征来检测超高速灰尘撞击的能力。星际尘埃（ISD）和行星际尘埃颗粒是根据ISD通量的年度调制来区分的。发现风对ISD通量变化的测量与尤利西斯测量的ISD通量变化非常吻合，尽管风对ISD流经太阳系的方向的测量不能与乌利西斯直接测量，但ISD的变化很大两个航天器在相似的时间段内观察到了流向。

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