{"paper":{"title":"The origin of long-lived asteroids in the 2:1 mean-motion resonance with Jupiter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"D. K. Skoulidou, D. Nesvorn\\'y, K. Tsiganis, M. Bro\\v{z}, O. Chrenko","submitted_at":"2015-05-16T21:45:06Z","abstract_excerpt":"The 2:1 mean-motion resonance with Jupiter harbours two distinct groups of asteroids. The short-lived population is known to be a transient group sustained in steady state by the Yarkovsky semimajor axis drift. The long-lived asteroids, however, can exhibit dynamical lifetimes comparable to $4\\,\\mathrm{Gyr}$. They reside near two isolated islands of the phase space denoted $\\mathrm{A}$ and $\\mathrm{B}$, with an uneven population ratio $\\mathrm{B}/\\mathrm{A} \\simeq 10$. The orbits of $\\mathrm{A}$-island asteroids are predominantly highly inclined, compared to island $\\mathrm{B}$. The size-frequ"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.04329","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}