沿着日球层的尾部向下流动

发布时间：2025-06-24 18:59:58  作者：北方职教升学中心  阅读量：571

从太阳发出的太阳风产生气泡，远远超过行星轨道。

Termination Shock。

NASA/Goddard/Walt Feimer Link to unlabeled version。
Blowing outward billions of kilometers from the Sun is the solar wind, a thin stream of electrically charged gas. This wind travels at an average speed ranging from 300 to 700 kilometers per second (700,000 – 1,500,000 miles per hour) until it reaches the termination shock. At this point, the speed of the solar wind drops abruptly as it begins to feel the effects of interstellar wind.。当太阳风向外挤压接近星际空间的风时，日球层顶 。Credit: 。

The Heliosphere - NASA。

The solar wind, emanating from the Sun, creates a bubble that extends far past the orbits of the planets. This bubble is the heliosphere, shaped like a long wind sock as it moves with the Sun through interstellar space.。受海王星影响，

Heliopause。沿着日球层的尾部向下流动。

在这个插图中，还有两艘旅行者宇宙飞船，以及他们离开阳光层的大致路径。

转自 The Heliosphere - NASA。
Heliosheath:。激波边界 。

Heliosheath。旅行者2号向下偏转，现在正朝着行星平面下方的方向南行。

Bow Shork。#xff0c;它会堆积起来。
Heliosphere:。1980年，

Termination Shock:。

当日球层穿过星际空间时，这种风每秒300到700公里（每小时70万到150万英里）平均速度传播，到达终点震波。

Heliosphere。这个气泡是日球层，形状像长风袜，随着太阳在星际空间中移动。
Heliopause:。这一点󿀌太阳风的速度突然下降，因为它开始感受到星际风的影响。日球层 。

日鞘层是日球层的外部区域，除了终止激波，太阳风在这里突然减速，变得更加密集和热。

The boundary between solar wind and interstellar wind is the heliopause, where the pressure of the two winds are in balance. This balance in pressure causes the solar wind to turn back and flow down the tail of the heliosphere.。
Bow shock:。

Heliosphere:。日鞘层 。

The heliosheath is the outer region of the heliosphere, just beyond the termination shock, the point where the solar wind slows abruptly, becoming denser and hotter. The solar wind piles up as it presses outward against the approaching wind in interstellar space.。这种压力的平衡导致太阳风转向，

As the heliosphere plows through interstellar space, a bow shock forms, similar to what forms as a ship plowing through the ocean.。 弓形激波。

Also present in this illustration are the two Voyager spacecraft with their approximate paths out of the Heliosphere. Voyager I was deflected northward above the plane of the planets’ orbits when it swung by Saturn in 1980. Voyager II was deflected downward by Neptune and is heading southward below the plane of the planets.。

太阳风࿰从太阳吹出数十亿公里c;带电气体流量稀薄。

太阳风和星际风之间的边界是日球层顶，这两种风的压力是平衡的。

This is an artist's concept of our Heliosphere as it travels through our galaxy with the major features labeled.。旅行者经过土星时，向北偏转行星轨道平面。，会形成弓形激波，就像船穿过海洋一样。