发现了14亿年历史的PicII-503恒星, 它含有极低铁和高碳. 这提供了关于早期宇宙恒星形成的线索. Astronomers found PicII-503, a 14-billion-year-old star with extremely low iron and high carbon, offering clues about early universe star formation.

天文学家发现了PicII-503,它是一颗极为罕见的14亿年老恒星,位于矮星系Pictor II中. 铁含量不到太阳1/4万分之一,碳与铁比重超过太阳1500倍. Astronomers have discovered PicII-503, an ultra-rare, 14-billion-year-old star in the dwarf galaxy Pictor II, with iron levels less than 1/40,000 of the Sun’s and a carbon-to-iron ratio over 1,500 times higher than the Sun’s. 它被归类为第二代恒星,由第一颗恒星丰富的物质形成,这表明低能超新星会喷射出碳但保留铁. Classified as a second-generation star, it formed from material enriched by the first stars, suggesting low-energy supernovae that ejected carbon but retained iron. 通过使用暗能量摄像头和后续望远镜发现, 这颗恒星的化学构成为早期宇宙提供了罕见的洞察力,支持原始元素形成和银河系演变理论. Found using the Dark Energy Camera and follow-up telescopes, the star’s chemical makeup offers rare insight into the early universe, supporting theories of primordial element formation and galaxy evolution.