论文标题
WISPR/Parker太阳能探针观察到的冠状射出的轨迹测定
Trajectory Determination for Coronal Ejecta Observed by WISPR/Parker Solar Probe
论文作者
论文摘要
在{\ it Parker solar Probe}（psp）上的太阳能探针}（WISPR）的{\ IT宽视场成像仪，以白光观察，具有固定的角度视野，从13.5 $^{\ circ} $扩展到来自太阳的13.5 $^{\ circ} $ tos the Sun和compertive the Sun和cirverveys und the Sun us cock} $ and termention them and comcirip。由于PSP的高椭圆轨道，成像冠状区域的物理范围直接随着距离太阳的距离而变化，需要新技术来分析观察到的密度特征的运动。在这里，我们提出了一种技术，用于确定CMES的3D轨迹和其他冠状射流以恒定速度移动的3D轨迹，首先以一系列图像跟踪运动，然后采用曲线拟合程序来确定轨迹参数（距离vs.时间，速度，速度，速度，经度和纬度）。为了验证该技术，我们已经确定了WISPR观察到的两个CME的轨迹，这些轨迹也被另一个白光成像仪（lasco/c3或stereo-a/hi1）观察到。第二个观点用于验证这种新技术的轨迹结果，并有助于确定其不确定性。
The {\it Wide-field Imager for Solar Probe} (WISPR) on {\it Parker Solar Probe} (PSP), observing in white light, has a fixed angular field of view, extending from 13.5$^{\circ}$ to 108$^{\circ}$ from the Sun and approximately 50$^{\circ}$ in the transverse directions. Because of the highly elliptical orbit of PSP, the physical extent of the imaged coronal region varies directly as the distance from the Sun, requiring new techniques for analysis of the motions of observed density features. Here, we present a technique for determining the 3D trajectory of CMEs and other coronal ejecta moving radially at a constant velocity by first tracking the motion in a sequence of images and then applying a curve-fitting procedure to determine the trajectory parameters (distance vs. time, velocity, longitude and latitude). To validate the technique, we have determined the trajectory of two CMEs observed by WISPR that were also observed by another white-light imager, either LASCO/C3 or STEREO-A/HI1. The second viewpoint was used to verify the trajectory results from this new technique and help determine its uncertainty.
