"BW" == Bill Wyatt writes:

BW Carsten Nielsen wrote:
I would not be surprised to find gas giants around metal-poor
stars, consisting of H and He.

BW I believe the theory under test is that gas giants can't form
BW without accretion onto a rocky core. If a Jupiter-like planet is
BW found around a metal-poor star, then fewer metals are needed or
BW the formation scenario is wrong.

There is at least one planet found in the metal-poor globular cluster M4.

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