Astronomers find a record-breaking pair of orbiting brown dwarfs

天文學家發現一對破紀錄的繞行棕矮星

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

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。

otherZTF J1239+8347

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

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合所需的質量。

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

整對系統非常緊湊,甚至可以塞進地球與月球之間。

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

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。

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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.

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。

otherCWISE J014611.20-050850.0AB
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What is unique about the orbital period of ZTF J1239+8347?

正確答案

It holds the record for the shortest orbital period for a detached brown dwarf binary at 57.41 minutes.

Why are brown dwarfs often described as 'failed stars'?

正確答案

They lack the mass required to sustain hydrogen fusion.

What behavior describes the 'vampire' interaction in this system?

正確答案

The denser brown dwarf is siphoning gas from its companion.

What might happen to the primary brown dwarf in the future?

正確答案

It may gain enough mass to trigger hydrogen fusion and become a star.

How did researchers identify this specific system?

正確答案

Through the system's brightness fluctuations detected by the Zwicky Transient Facility.

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