The late formation of chondrites as a consequence of Jupiter-induced gaps and rings
arXiv:2510.19994 · doi:10.1126/sciadv.ady4823
Abstract
The accretion ages of the first planetesimals-the parent bodies of magmatic iron meteorites-suggest they formed within the first 0.5-1 Myr of Solar System history. Yet, planetesimal formation appears to have occurred in at least two distinct phases. A temporal offset separates early-forming bodies from later-forming chondrite parent bodies, which accreted 2-3 Myr after the Solar System onset - an unresolved aspect of Solar System formation. Here we use numerical simulations to show that Jupiter's early formation reshaped its natal protoplanetary disk. Jupiter's rapid growth depleted the inner disk gas and generated pressure bumps and dust traps that manifested as rings. These structures caused dust to accumulate and led to a second-generation planetesimal population, with ages matching those of non-carbonaceous chondrites. Meanwhile, the evolving gas structure suppressed terrestrial embryos' inward migration, preventing them from reaching the innermost regions. Jupiter likely played a key role in shaping the inner Solar System, consistent with structures observed in Class II and transition disks.
arXiv comment47 pages, 13 figures. Published in Science Advances
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