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G-Dwarf Problem

(lack of metal-poor G-Dwarfs in the Milky Way)

The G-Dwarf Problem is that fewer G-Type Star with low Metallicity are observed in the Milky Way than theories of Galaxy formation and evolution imply there would be. G-class stars have a long enough Main-Sequence lifetime that early-generation examples with low metallicity should still be present.

Some observations of other galaxies suggest the problem is also present regarding them.


(stars,metallicity)
https://arxiv.org/abs/0712.1985
https://ned.ipac.caltech.edu/level5/Sept04/Henry/Henry4_3.html

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