Bifurcation of planetary building blocks during Solar System formation
Geochemical and astronomical evidence demonstrates that planet formation occurred in two spatially and temporally separated reservoirs. The origin of this dichotomy is unknown. We use numerical models to investigate how the evolution of the solar protoplanetary disk influenced the timing of protopla...
| Main Authors: | , , , , |
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| Format: | Journal article |
| Language: | English |
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American Association for the Advancement of Science
2021
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| _version_ | 1826278460620800000 |
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| author | Lichtenberg, T Dra Żkowska, J Schönbächler, M Golabek, GJ Hands, TO |
| author_facet | Lichtenberg, T Dra Żkowska, J Schönbächler, M Golabek, GJ Hands, TO |
| author_sort | Lichtenberg, T |
| collection | OXFORD |
| description | Geochemical and astronomical evidence demonstrates that planet formation occurred in two spatially and temporally separated reservoirs. The origin of this dichotomy is unknown. We use numerical models to investigate how the evolution of the solar protoplanetary disk influenced the timing of protoplanet formation and their internal evolution. Migration of the water snow line can generate two distinct bursts of planetesimal formation that sample different source regions. These reservoirs evolve in divergent geophysical modes and develop distinct volatile contents, consistent with constraints from accretion chronology, thermochemistry, and the mass divergence of inner and outer Solar System. Our simulations suggest that the compositional fractionation and isotopic dichotomy of the Solar System was initiated by the interplay between disk dynamics, heterogeneous accretion, and internal evolution of forming protoplanets. |
| first_indexed | 2024-03-06T23:44:15Z |
| format | Journal article |
| id | oxford-uuid:705cdc02-49f8-4726-9bf0-b6f35009df85 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T23:44:15Z |
| publishDate | 2021 |
| publisher | American Association for the Advancement of Science |
| record_format | dspace |
| spelling | oxford-uuid:705cdc02-49f8-4726-9bf0-b6f35009df852022-03-26T19:36:42ZBifurcation of planetary building blocks during Solar System formationJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:705cdc02-49f8-4726-9bf0-b6f35009df85EnglishSymplectic ElementsAmerican Association for the Advancement of Science2021Lichtenberg, TDra Żkowska, JSchönbächler, MGolabek, GJHands, TOGeochemical and astronomical evidence demonstrates that planet formation occurred in two spatially and temporally separated reservoirs. The origin of this dichotomy is unknown. We use numerical models to investigate how the evolution of the solar protoplanetary disk influenced the timing of protoplanet formation and their internal evolution. Migration of the water snow line can generate two distinct bursts of planetesimal formation that sample different source regions. These reservoirs evolve in divergent geophysical modes and develop distinct volatile contents, consistent with constraints from accretion chronology, thermochemistry, and the mass divergence of inner and outer Solar System. Our simulations suggest that the compositional fractionation and isotopic dichotomy of the Solar System was initiated by the interplay between disk dynamics, heterogeneous accretion, and internal evolution of forming protoplanets. |
| spellingShingle | Lichtenberg, T Dra Żkowska, J Schönbächler, M Golabek, GJ Hands, TO Bifurcation of planetary building blocks during Solar System formation |
| title | Bifurcation of planetary building blocks during Solar System formation |
| title_full | Bifurcation of planetary building blocks during Solar System formation |
| title_fullStr | Bifurcation of planetary building blocks during Solar System formation |
| title_full_unstemmed | Bifurcation of planetary building blocks during Solar System formation |
| title_short | Bifurcation of planetary building blocks during Solar System formation |
| title_sort | bifurcation of planetary building blocks during solar system formation |
| work_keys_str_mv | AT lichtenbergt bifurcationofplanetarybuildingblocksduringsolarsystemformation AT drazkowskaj bifurcationofplanetarybuildingblocksduringsolarsystemformation AT schonbachlerm bifurcationofplanetarybuildingblocksduringsolarsystemformation AT golabekgj bifurcationofplanetarybuildingblocksduringsolarsystemformation AT handsto bifurcationofplanetarybuildingblocksduringsolarsystemformation |