Emmanuel Jacquet, Cornelis Dullemond, Joanna Drążkowska, Steven Desch
{"title":"The early Solar System and its meteoritical witnesses","authors":"Emmanuel Jacquet, Cornelis Dullemond, Joanna Drążkowska, Steven Desch","doi":"arxiv-2409.07212","DOIUrl":null,"url":null,"abstract":"Meteorites, and in particular primitive meteorites (chondrites), are\nirreplaceable probes of the solar protoplanetary disk. We review their\nessential properties and endeavour to place them in astrophysical context. The\nearliest solar system solids, refractory inclusions, may have formed over the\ninnermost au of the disk and have been transported outward by its expansion or\nturbulent diffusion. The age spread of chondrite components may be reconciled\nwith the tendency of drag-induced radial drift if they were captured in\npressure maxima, which may account for the non-carbonaceous/carbonaceous\nmeteorite isotopic dichotomy. The solid/gas ratio around unity witnessed by\nchondrules, if interpreted as nebular (non-impact) products, suggests efficient\nradial concentration and settling at such locations, conducive to planetesimal\nformation by the streaming instability. The cause of the pressure bumps, e.g.\nJupiter or condensation lines, remains to be ascertained.","PeriodicalId":501270,"journal":{"name":"arXiv - PHYS - Geophysics","volume":"23 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Geophysics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.07212","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Meteorites, and in particular primitive meteorites (chondrites), are
irreplaceable probes of the solar protoplanetary disk. We review their
essential properties and endeavour to place them in astrophysical context. The
earliest solar system solids, refractory inclusions, may have formed over the
innermost au of the disk and have been transported outward by its expansion or
turbulent diffusion. The age spread of chondrite components may be reconciled
with the tendency of drag-induced radial drift if they were captured in
pressure maxima, which may account for the non-carbonaceous/carbonaceous
meteorite isotopic dichotomy. The solid/gas ratio around unity witnessed by
chondrules, if interpreted as nebular (non-impact) products, suggests efficient
radial concentration and settling at such locations, conducive to planetesimal
formation by the streaming instability. The cause of the pressure bumps, e.g.
Jupiter or condensation lines, remains to be ascertained.