Copyright:CHART32 Team
原文:
Following an ancient galaxy-galaxy collision 200 million light-years from Earth, debris from a gas-rich galaxy, NGC 5291, was flung far into intergalactic space. NGC 5291 and the likely interloper, also known as the “Seashell” galaxy, are captured near the center of this spectacular scene. The sharp, ground-based telescopic image looks toward the galaxy cluster Abell 3574 in the southern constellation Centaurus. Stretched along the 100,000 light-year long tidal tails, are clumps resembling dwarf galaxies, but lacking old stars, apparently dominated by young stars and active star forming regions. Found to be unusually rich in elements heavier than hydrogen and helium, the dwarf galaxies were likely born in intergalactic space, recycling the enriched debris from NGC 5291 itself.
中文翻譯:
🌌 在距離地球2億光年的遙遠地方，古老的星系碰撞後，氣體豐富的星系 NGC 5291 的殘骸被彈射到星際空間。該事件中，NGC 5291 和可能的入侵者，亦被稱為「貝殼星系」（Seashell galaxy），一起出現在這幅壯觀的畫面中。這幅清晰的地面望遠鏡圖像集中於位於南方星座半人馬座的星系團 Abell 3574。
沿著長達 100,000 光年的潮汐尾巴延伸著一些小型星系的結塊，看似是矮星系，但缺乏老年恆星，明顯被年輕恆星和活躍的星系形成區主導。這些矮星系發現含有異常豐富的比氫和氦更重的元素，推測它們可能是在星際空間中誕生的，回收了 NGC 5291 本身的豐富殘骸。✨
#NGC5291 #SeashellGalaxy #Abell3574 #GalaxyCollision #StarFormation #IntergalacticSpace #Astronomy #SpaceExploration #Astrophotography #CosmicWonder #Universe #ScientificDiscovery
來源:NASA每日圖片
