标题： LISA Pathfinder中加速噪声的虚假太阳风效应 显示英文标题

标题： Spurious Solar-Wind Effects on Acceleration Noise in LISA Pathfinder

摘要： 未来激光干涉空间天线（LISA）测量中的潜在噪声源是虚假的日风效应。比较模型用于预测这一噪声因素的可能影响，并估计日风效应在LISA路径探测器（LPF）加速度噪声中的影响。来自位于L1拉格朗日点的美国国家航空航天局先进成分探测器（ACE）的数据作为日风数据的可靠来源。数据集在2016年3月1日至2016年6月23日的114天时间范围内进行了比较。为了评估这些效应，两颗卫星的数据被格式化、填补缺失值并进行比较，并制作了比较快速傅里叶变换结果的相干图。相干图表明日风对LPF的影响微乎其微，且较高频率的相干性（LISA的主要观测频段）可以归因于随机相关性。这一结果表明，在三个月的时间尺度上，由于日风噪声引起的可测量相关性可以排除作为噪声源。这是令人鼓舞的，尽管来自太阳的另一种噪声源——太阳辐射压力，预计会产生更显著的影响，尚未被分析。 显示英文摘要

摘要： Spurious solar-wind effects are a potential noise source in the measurements of the future Laser Interferometer Space Antenna (LISA). Comparative models are used to predict the possible impact of this noise factor and estimate spurious solar-wind effects on acceleration noise in LISA Pathfinder (LPF). Data from NASA's Advanced Composition Explorer (ACE), situated at the L1 Lagrange point, served as a reliable source of solar-wind data. The data sets were compared over the 114-day time period from March 1, 2016 to June 23, 2016. To evaluate these effects, the data from both satellites were formatted, gap-filled, and adapted for comparison, and a coherence plot comparing the results of the Fast Fourier Transformations. The coherence plot suggested that solar-wind had a minuscule effect on the LPF, and higher frequency coherence (LISA's main observing band) can be attributed to random chance correlation. This result indicates that measurable correlation due to solar-wind noise over 3-month timescales can be ruled out as a noise source. This is encouraging, although another source of noise from the sun, solar irradiance pressure, is estimated to have a more significant effect and has yet to be analyzed.