论文标题

PSP太阳能遇到10的遥感观察概述,围围比13.3 rsun

Overview of the remote sensing observations from PSP solar encounter 10 with perihelion at 13.3 Rsun

论文作者

Howard, Russell A., Stenborg, Guillermo, Vourlidas, Angelos, Gallagher, Brendan M., Linton, Mark G., Hess, Phillip, Rich, Nathan B., Liewer, Paulett C.

论文摘要

到目前为止,帕克太阳能探测器(PSP)的最接近的围栏通行证发生在2021年11月16日至26日之间,距离太阳中心(Sun Center)达到了〜13.29 RSUN。这次通行证导致了太阳能探针(WISPR)的宽大仪器对太阳能电晕的非常独特的观察。 WISPR观察到至少十个CME,其中一些是如此近,以至于结构似乎扭曲了。所有的CME似乎都具有磁通绳(MFR)结构,并且大多数是定向的,因此该视图沿轴向取向,揭示了非常复杂的内饰。两个CME的内部有一个小的MFR,其圆形圆形边界非常黑暗。落后较大的CME是小斑点和通量绳的大量流出,如横纹丝带中的结构,持续了很多小时。当Heliophysics等离子体表(HPS)被倾斜时,就像2021年11月21日近日时期的日子一样,流出量超过了非常宽的纬度范围。一个CME被更快的速度所取代,导致领先CME的后部压缩,并且在后cme中的不寻常扩展。小汤姆森表面会在结构穿过视野时产生亮度变化。除了这种动态活性外,还可以看到沿小行星/彗星3200 phaethon沿粉尘产生的亮度带。

The closest perihelion pass of Parker Solar Probe (PSP), so far, occurred between 16 and 26 of November 2021 and reached ~13.29 Rsun from Sun center. This pass resulted in very unique observations of the solar corona by the Wide-field Instrument for Solar PRobe (WISPR). WISPR observed at least ten CMEs, some of which were so close that the structures appear distorted. All of the CMEs appeared to have a magnetic flux rope (MFR) structure and most were oriented such that the view was along the axis orientation, revealing very complex interiors. Two CMEs had a small MFR develop in the interior, with a bright circular boundary surrounding a very dark interior. Trailing the larger CMEs were substantial outflows of small blobs and flux-rope like structures within striated ribbons, lasting for many hours. When the heliophysics plasma sheet (HPS) was inclined, as it was during the days around perihelion on November 21, 2021, the outflow was over a very wide latitude range. One CME was overtaken by a faster one, with a resultant compression of the rear of the leading CME and an unusual expansion in the trailing CME. The small Thomson Surface creates brightness variations of structures as they pass through the field of view. In addition to this dynamic activity, a brightness band from excess dust along the orbit of asteroid/comet 3200 Phaethon is also seen for several days.

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