{"paper":{"title":"A Six-Planet Resonance Chain in K2-138?","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Argentina), C. Beaug\\'e (1) ((1) Instituto de Astronom\\'ia Te\\'orica y Experimental (IATE), M. Cerioni (1), Observatorio Astron\\'omico, Universidad Nacional de C\\'ordoba","submitted_at":"2023-08-18T14:30:19Z","abstract_excerpt":"The K2-138 system hosts six planets and presents an interesting case study due to its distinctive dynamical structure. Its five inner planets are near a chain of 3/2 two-body mean-motion resonances, while the outermost body (planet {\\it g}) is significantly detached, having a mean-motion ratio of $n_f/n_g \\sim 3.3$ with its closest neighbor. We show that the orbit of $m_g$ is actually consistent with the first-order three-planet resonance (3P-MMR) characterized by the relation $2n_e - 4n_f + 3n_g = 0$ and is the first time a pure first-order 3P-MMR is found in a multi-planet system and tied to"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2308.09588","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2308.09588/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}