{"paper":{"title":"TOI-544 b: a potential water-world inside the radius valley in a two-planet system","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. Alqasim, A. Hatzes, A. Weeks, C. Hellier, C. M. Persson, D. Gandolfi, E. Goffo, E. Knudstrup, E. Pall\\'e, F. Murgas, F. Rodler, G. Nowak, H. J. Deeg, H. L. M. Osborne, I. Carleo, J. Alarcon, J. Korth, J. Livingston, J. Orell-Miquel, J. S. Jenkins, K. W. F. Lam, L. Serrano, M. Esposito, M. Fridlund, M. Garbaccio Gili, M. R. D\\'iaz, M. Stangret, N. Casasayas-Barris, O. Barrag\\'an, R. Luque, S. H. Albrecht, S. Redfield, T. Hirano, V. Van Eylen, W. D. Cochran","submitted_at":"2023-10-23T13:17:50Z","abstract_excerpt":"We report on the precise radial velocity follow-up of TOI-544 (HD 290498), a bright K star (V=10.8), which hosts a small transiting planet recently discovered by the Transiting Exoplanet Survey Satellite (TESS). We collected 122 high-resolution HARPS and HARPS-N spectra to spectroscopically confirm the transiting planet and measure its mass. The nearly 3-year baseline of our follow-up allowed us to unveil the presence of an additional, non-transiting, longer-period companion planet. We derived a radius and mass for the inner planet, TOI-544b, of 2.018 $\\pm$ 0.076 R$_{\\oplus}$ and 2.89 $\\pm$ 0."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2310.14908","kind":"arxiv","version":2},"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/2310.14908/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"}