{"paper":{"title":"A Massive Planet to the Young Disc Star HD 81040","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"2), (2) INAF-Osservatorio Astronomico di Torino, (3) Geneva Observatory, (4) Tel Aviv University, (5) Laboratoire d'Astrophysique de Grenoble, (6) European Southern Observatory, (7) Observatoire de Haute-Provence), A. Sozzetti (1, C. Perrier (5), D. Naef (6), D. Queloz (3), D. W. Latham (1), G. Torres (1), J. L. Beuzit (5), J.-P. Sivan (7) ((1) Harvard-Smithsonian Center for Astrophysics, M. Mayor (3), S. Udry (3), S. Zucker (4), T. Mazeh (4)","submitted_at":"2005-11-23T18:02:54Z","abstract_excerpt":"We report the discovery of a massive planetary companion orbiting the young disc star HD 81040. Based on five years of precise radial-velocity measurements with the HIRES and ELODIE spectrographs, we derive a spectroscopic orbit with a period $P =1001.0$ days and eccentricity $e = 0.53$. The inferred minimum mass for the companion of $m_2\\sin i = 6.86$ M$_\\mathrm{Jup}$ places it in the high-mass tail of the extrasolar planet mass distribution. The radial-velocity residuals exhibit a scatter significantly larger than the typical internal measurement precision of the instruments. Based on an ana"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0511679","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/astro-ph/0511679/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"}