[新聞] 偵測到地球釋出神秘的之字形力場

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1.媒體來源:

外媒    sciencealert

2.記者署名:

Michael Irving

3.完整新聞標題:

Unexpected 'Zig-Zag' Structures Discovered in Earth's Magnetic Field

4.完整新聞內文:

Unexpected 'Zig-Zag' Structures Discovered in Earth's Magnetic Field
Physics
24 November 2025
By Michael Irving

偵測到地球釋出神秘的之字形力場

物理
2025年11月24日
由麥可歐文

Earth surrounded by a red haze preresenting plasma

地球被一層紅色薄霧籠罩，這層薄霧中充滿了等離子體。

Artist's impression of plasma surrounding Earth. (Naeblys/Getty Images)

藝術家描繪的環繞地球的等離子體景象。 （圖片來源：Naeblys／Getty Images）

A strange phenomenon thought to only exist near the Sun has been detected in
Earth's magnetic field for the first time. The discovery could help
scientists forecast the impact of geomagnetic storms more accurately.

Physicists Emily McDougall and Matthew Argall at the University of New
Hampshire detected unexpected structures in the plasma caught in Earth's
magnetic field. The plasma seemed to have been rotating slowly before
snapping back to its original orientation, creating zigzag-shaped kinks
called magnetic switchbacks.

一種先前被認為只存在於太陽附近的奇異現象，首次在地球磁場中被探測到。這項發現或
有助於科學家更準確地預測 地磁暴的影響。

新罕布夏大學的物理學家艾米麗·麥克杜格爾和馬修·阿加爾在地球磁場捕獲的等離子體
中探測到了意想不到的結構。這些等離子體似乎在緩慢旋轉後又突然恢復到原來的方向，
形成了被稱為「磁迴轉」的鋸齒狀彎曲。

While these switchbacks haven't been seen in Earth's magnetic field before,
they are reminiscent of structures seen in the plasma constantly blasting out
of the Sun. And it turns out the two may be linked.

雖然地球磁場中先前從未觀測到這種折返現象，但它們與太陽不斷噴射出的等離子體中的
結構非常相似。而事實證明，這兩者之間可能存在關聯。

On closer examination, the team found that not all of the plasma caught in
Earth's magnetic field was from our planet – some of it had come from the
Sun, mixing with locally sourced charged particles. That interaction caused
the magnetic field to break and reconnect, creating the characteristic
zigzags.

Sun-studying spacecraft have seen signs of switchbacks for decades. Though
there are a few competing theories explaining their origins, they seem to
form when two different types of magnetic field lines interact.

研究團隊進一步發現，並非所有被地球磁場捕獲的等離子體都來自地球—其中一部分來
自太陽，並與本地產生的帶電粒子混合。這種相互作用導致磁場斷裂和重連，從而形成了
特有的鋸齒狀磁場。

數十年來，探測太陽的太空船一直觀測到磁力線折返的跡象。儘管關於其成因存在著幾種
不同的理論，但它們似乎是由兩種不同類型的磁力線相互作用形成的。

Open field lines point directly away from the Sun, streaming out into space
and carrying plasma that we call the solar wind. Closed field lines, however,
travel outwards for a relatively short distance, then reverse course and
curve back into the Sun.

開放磁力線直接指向遠離太陽的方向，向太空流動，並攜帶著我們稱為太陽風的等離子體
。而閉合磁力線則向外延伸相對較短的距離，然後反向彎曲，回到太陽內部。

https://i.urusai.cc/z6AHG.jpg

Strange Zigzag Anomaly Detected in Earth's Magnetic Field For First Time
A diagram illustrating how switchbacks form in the Sun's magnetic field, as
open field lines (left) interact with closed field lines (right). (Zank et
al., ApJ, 2020)

圖示說明了太陽磁場中磁矩回折是如何形成的，圖中可見開放磁力線（左）與閉合磁力線
（右）相互作用。 （Zank等人，《天文物理學雜誌》，2020）

When open field lines form near a set of closed magnetic fields, they can
break apart and reconnect with one another. Plasma on the outer edge of a
closed loop is pulled back toward the Sun, only to be guided into the open
field lines, taking it out into space. Interactions between the lines in this
S-shaped wave release bursts of energy that 'kinks' the field lines – this
is a switchback.

當開放磁力線在閉合磁場附近形成時，它們會分離並重新連接。閉合磁環外緣的等離子體
被拉向太陽，隨後又被引導進入開放磁力線，最終進入太空。這種S形波中磁力線之間的
相互作用會釋放出能量脈衝，使磁力線發生「折彎」—這就是所謂的「折返」。

McDougall and Argall identified signs of a similar structure in Earth's
magnetic field while analyzing data from NASA's Magnetospheric Multiscale
mission. In this case, the open field lines are those streaming in from the
Sun, which interact with the closed field lines looping around Earth.

"This discovery, " the researchers write, "provides new clues about how
similar disturbances can form at the boundary between different regions of
plasma, which allows for future study of related events in the Sun's outer
layers without needing to send spacecraft directly into those extreme
conditions."

The research was published in the Journal of Geophysical Research: Space
Physics.

麥克杜格爾和阿加爾在分析美國太空總署磁層多尺度探測任務的數據時，發現了地球磁場
中類似結構的跡象。在這種情況下，開放磁力線是指從太陽輻射過來的磁力線，它們與環
繞地球的閉合磁力線相互作用。

研究人員寫道： “這一發現為我們提供了新的線索，讓我們得以了解類似的擾動如何在
等離子體不同區域之間的邊界處形成，從而使我們能夠在未來研究太陽外層的相關事件，
而無需將航天器直接送入那些極端條件。”

這項研究成果發表在《地球物理研究期刊：太空物理學》。

5.完整新聞連結 (或短網址)不可用YAHOO、LINE、MSN等轉載媒體:

https://reurl.cc/R9vy79

6.備註:

空知猩猩果然私下有接觸過虛跟天導眾

https://youtu.be/xh1MKfA12cY



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