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