{"paper":{"title":"HD 23472: A multi-planetary system with three super-Earths and two potential super-Mercuries","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. Leleu, C. Lovis, D. Bossini, N. Hara, S. C. C. Barros (1) O. D. S. Demangeon, S. G. Sousa, the ESPRESSO team (1 - Instituto de Astrofisica e Ciencias do Espaco), V. Adibekyan, Y. Alibert","submitted_at":"2022-09-27T12:54:52Z","abstract_excerpt":"We report the characterisation of a multi-planetary system composed of five exoplanets orbiting the K-dwarf HD~23472 (TOI-174). In addition to the two super-Earths that were previously confirmed, we confirm and characterise three Earth-size planets in the system using ESPRESSO radial velocity observations. The planets of this compact system have periods of $P_d \\sim 3.98\\,$, $P_e \\sim 7.90\\,$, $P_f \\sim 12.16\\,$, $P_b \\sim 17.67,\\,$ and $P_c \\sim 29.80\\,$days and radii of $R_d \\sim 0.75\\,$ , $R_e \\sim 0.82,$, $R_f \\sim 1.13\\,$, $R_b \\sim 2.01,\\,$ and, $R_c \\sim 1.85\\,$ \\REarth. Because of its "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.13345","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/2209.13345/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"}