{"paper":{"title":"The CARMENES search for exoplanets around M dwarfs. A sub-Neptunian mass planet in the habitable zone of HN Lib","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. P. Hatzes, A. Quirrenbach, A. Reiners, A. Schweitzer, C. Cifuentes, C. Rodr\\'iguez-L\\'opez, D. Kossakowski, D. Montes, E. Gonz\\'alez-\\'Alvarez, E. Herrero, E. Pall\\'e, E. Rodr\\'iguez, H. M. Tabernero, I. Ribas, J. A. Caballero, J. C. Morales, J. Kemmer, J. Sanz-Forcada, L. Tal-Or, M. J. L\\'opez-Gonz\\'alez, M. Perger, M. R. Zapatero Osorio, M. Zechmeister, P. Chaturvedi, P. J. Amado, S. Pedraz, S. Reffert, S. Sabotta, S. Stock, Th. Henning, V. J. S. B\\'ejar, Y. Shan","submitted_at":"2023-05-31T09:16:48Z","abstract_excerpt":"We report the discovery of HN Lib b, a sub-Neptunian mass planet orbiting the nearby ($d \\approx$ = 6.25 pc) M4.0 V star HN Lib detected by our CARMENES radial-velocity (RV) survey. We determined a planetary minimum mass of $M_\\text{b}\\sin i = $ 5.46 $\\pm$ 0.75 $\\text{M}_\\oplus$ and an orbital period of $P_\\text{b} = $ 36.116 $\\pm$ 0.029 d, using $\\sim$5 yr of CARMENES data, as well as archival RVs from HARPS and HIRES spanning more than 13 years. The flux received by the planet equals half the instellation on Earth, which places it in the middle of the conservative habitable zone (HZ) of its "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.19677","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/2305.19677/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"}