heliosphere

基本解釋

“First and foremost, this is a big surprise because we thought we know a lot about this region, the edge of the heliosphere,” McComas says.
“首先，這太讓人喫驚了，因爲我們認爲對日球?qū)拥倪吘壱呀?jīng)了解的夠多的了，”麥科馬斯說道。
One possibility is that pressure from this external magnetic field has forced particles just inside the heliosphere to bunch together into a ribbon.
一個可能性就是外部磁場的壓力強行把日球?qū)觾?nèi)部的粒子壓到了一起，形成了窄帶。
The heliosphere shields the solar system from 90 percent of energetic cosmic rays — high-speed charged particles that would otherwise bombard the planets and harm life.
日球?qū)泳拖褚粋€盾牌，擋住了90%高能宇宙射線。宇宙射線由高速帶電粒子組成，會轟擊星球竝傷害生物。

Measurements from August 25th onwards show a steep drop in the detected volume of cosmic rays from the heliosphere, just as the extrasolar rays are picking up.
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the region around the sun outside of which the sun's influence is negligible and interstellar space begins