What process, according to the University of Zurich simulations, explains Jupiter's enrichment in heavy chemical elements?

Answer

Engulfment of multiple, massive precursor moons

The successive generations model suggests that multiple systems of Galilean-mass moons formed, spiraled inward due to gas drag, and were engulfed by Jupiter, carrying substantial heavy chemical mass inward.

What process, according to the University of Zurich simulations, explains Jupiter's enrichment in heavy chemical elements?
astronomyJupitersolar systemformationmoons