{"paper":{"title":"Transiting exoplanets from the CoRoT space mission. XI. CoRoT-8b: a hot and dense sub-Saturn around a K1 dwarf","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. Baglin, A. Erikson, A. Hatzes, A. L\\'eger, A. Santerne, A. S. Bonomo, B. Samuel, B. Tingley, C. Lovis, C. Moutou, D. Gandolfi, D. Queloz, D. Rouan, E. Guenther, F. Bouchy, F. Pepe, G. H\\'ebrard, G. Wuchterl, H. Bruntt, H. Deeg, H. Lammer, H. Rauer, J. Cabrera, J.-C. Gazzano, J. M. Almenara, J.Schneider, J. Weingrill, L. Carone, L. Jorda, M. Auvergne, M. Deleuil, M. Fridlund, M. Gillon, M. Havel, M. Mayor, M. Ollivier, M. P\\\"atzold, P. Barge, P. Bord\\'e, P. Guterman, R. Alonso, R. Dvorak, S. Aigrain, S. Carpano, S. Csizmadia, S. Ferraz-Mello, S. Udry, T. Guillot, T. Mazeh, W. Benz","submitted_at":"2010-08-02T15:31:33Z","abstract_excerpt":"We report the discovery of CoRoT-8b, a dense small Saturn-class exoplanet that orbits a K1 dwarf in 6.2 days, and we derive its orbital parameters, mass, and radius. We analyzed two complementary data sets: the photometric transit curve of CoRoT-8b as measured by CoRoT and the radial velocity curve of CoRoT-8 as measured by the HARPS spectrometer. We find that CoRoT-8b is on a circular orbit with a semi-major axis of 0.063 +/- 0.001 AU. It has a radius of 0.57 +/- 0.02 RJ, a mass of 0.22 +/- 0.03 MJ, and therefore a mean density 1.6 +/- 0.1 g/cm^3. With 67 % of the size of Saturn and 72 % of i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.0325","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":""},"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"}