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Pretty tenuous relationship at this stage, too - lots more data/discoveries required, I think.
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Originally Posted by renormalised
There is a relationship between metallicity and the planets that form around these stars. The higher the star's metallicity, it seems, the more likely the planets forming around it will be giant planets and the higher the Fe/H ratio, the heavier the planets are. Conversely, the less metallicity, the smaller the planets or even no planets at all. The metallicity determines the size and the make up of the protoplanetary disks around the stars. High metallicity means more material, especially refractory elements...low metallicity means less material and mostly gases and ices.
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Yep. Not questioning the rationale - it makes sense.
They need more data. So far, they've got 15 datapoints.
Cheers