{"paper":{"title":"Two Transiting Low Density Sub-Saturns from K2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Andrew W. Howard, Benjamin J. Fulton, Brad M. S. Hansen, Charles A. Beichman, David R. Ciardi, Eric D. Lopez, Erik A. Petigura, Eugene Chiang, Evan Sinukoff, Eve J. Lee, Howard Isaacson, Ian J. M. Crossfield, Joshua E. Schlieder, Katherine M. Deck","submitted_at":"2015-11-14T03:25:12Z","abstract_excerpt":"We report the discovery and confirmation of two sub-Saturn planets orbiting a bright (V = 11.3), metal-rich ([Fe/H] = 0.42 $\\pm$ 0.04 dex) G3 dwarf in the K2 Campaign 2 field. The planets are 5.68 $\\pm$ 0.56 Earth-radii and 7.82 $\\pm$ 0.72 Earth-radii and have orbital periods of 20.8851 $\\pm$ 0.0003 d and 42.3633$\\pm$0.0006 d, near to the 2:1 mean-motion resonance. We obtained 32 radial velocities (RVs) with Keck/HIRES and detected the reflex motion due to EPIC-203771098b and c. These planets have masses of 21.0 $\\pm$ 5.4 Earth-masses and 27.0 $\\pm$ 6.9 Earth-masses, respectively. With low den"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.04497","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":""},"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"}