Helmi stream
- 珍珠星流(珍珠星流是银河系中的一个贫金属恒星构成的星流,总质量约为1000万到1亿倍太阳质量。它来自一个被银河系并吞的矮星系,大约在60到90亿年前被并吞)
Helmi stream
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abstract:
The Helmi stream is a stellar stream of the Milky Way galaxy. It started as a dwarf galaxy, now absorbed by the Milky Way as a stream.
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WordNet