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Oldest Carbon-rich Stars Open a Window to Early Cosmic Chemistry
3 Articles
3 Articles
Oldest Carbon-rich Stars Open a Window to Early Cosmic Chemistry
Astronomers studying the ultra-faint dwarf galaxy Pictor II have found an extremely chemically peculiar star that contains traces of elements created by the first stars in the Universe. It's called PicII-503, a "second-generation star" that is one of the most chemically primitive stars ever found.
Just as archaeologists uncover traces of ancient civilizations, astronomers occasionally stumble upon relics from the oldest eras. But these are not shards of pottery or skeletons in the sand, but in this case the extremely rare star PicII-503, which bears the chemical imprint of the first stars formed after the birth of the cosmos.
Astronomers studying the ultra-faint dwarf galaxy Pictor II, a satellite of the Large Magellanic Cloud, have made a significant discovery: a star designated PicII-503. This celestial object stands out for its unique chemical composition, containing traces of elements forged by the very first stars in the universe. Classified as a "second-generation star" and considered one of the most primitive ever chemically identified, PicII-503 exhibits an e…
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