天文學家發現一對破紀錄的繞行棕矮星

Astronomers find a record-breaking pair of orbiting brown dwarfs

天文學家發現了一個引人入勝的星系系統,名為 ZTF J1239+8347,距離地球 1,000 光年。

Astronomers have discovered a fascinating system called ZTF J1239+8347, located 1,000 light-years away.

otherZTF J1239+8347
location地球

這個聯星系統由兩顆棕矮星組成,它們常被稱為「失敗的恆星」,因為它們缺乏進行氫融ㄖㄨㄥˊㄏㄜˊ所需的質量。

This binary system consists of two brown dwarfs, often called "failed stars" because they lack the mass for hydrogen fusion.

concept棕矮星
concept恆星
concept氫融合

整對系統非常緊湊,甚至可以塞進地球與月球之間。

The entire pair is so compact it could fit between the Earth and the Moon.

location地球
location月球

科學家觀察到一種罕見的「吸血鬼」效應,其中較重的棕矮星會吸取其伴星的氣體,從而產生一個明亮的熱點,導致該系統的光線產生脈動。

Scientists observed an unusual "vampire" effect where the heavier brown dwarf siphons gas from its companion, creating a bright hot spot that causes the system's light to pulse.

concept棕矮星

這一發現具有開創性,因為它表明棕矮星可能並不總是「失敗」的。

This discovery is groundbreaking because it suggests that brown dwarfs might not always be "failed."

concept棕矮星

透過質量轉移,主矮星可能獲得足夠的物質來最終觸發融合,有效地「點燃」成為真正的恆星。

Through mass transfer, the primary dwarf could gain enough material to finally trigger fusion, effectively "igniting" into a real star.

concept恆星

這一發現挑戰了我們對亞恆星演化的理解,並證明了這些天體可以進行高度動態的交互作用。

This finding challenges our understanding of substellar evolution and proves that these objects can engage in highly dynamic interactions.

concept恆星

儘管像 CWISE J014611.20-050850.0AB 這樣的系統顯示出棕矮星之間可以有多遙遠,但 ZTF J1239+8347 證明了它們的關係可以變得多麼親密。

While systems like CWISE J014611.20-050850.0AB show how far apart brown dwarfs can be, ZTF J1239+8347 proves how intimate their relationships can become.

otherCWISE J014611.20-050850.0AB
concept棕矮星
otherZTF J1239+8347
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End of article

You read 8 focus sentences.

Challenge Mode

Comprehension Questions

ZTF J1239+8347 的軌道週期有何獨特之處?

Correct Choice

它以 57.41 分鐘的週期保持著分離型棕矮星聯星系統中最短軌道週期的紀錄。

為什麼棕矮星常被描述為「失敗的恆星」?

Correct Choice

它們缺乏維持氫融合所需的質量。

什麼行為描述了該系統中的「吸血鬼」交互作用?

Correct Choice

較緻密的棕矮星正在吸取其伴星的氣體。

主棕矮星未來可能會發生什麼事?

Correct Choice

它可能會獲得足夠的質量來觸發氫融合並成為一顆恆星。

研究人員是如何識別出這個特定系統的?

Correct Choice

透過茨威基瞬變探測器(Zwicky Transient Facility)所偵測到的系統亮度波動。

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