{"paper":{"title":"A nearby M star with three transiting super-Earths discovered by K2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Andrew W. Howard, B.J. Fulton, Brad M. S. Hansen, Christian Obermeier, Christoph Mordasini, David R. Ciardi, Eddie Schlafly, Elisa V. Quintana, Erik Petigura, Howard T. Isaacson, Ian J. M. Crossfield, Imke de Pater, Jessie L. Christiansen, Joshua Schlieder, Justin R. Crepp, Katherine de Kleer, Kimberly M. Aller, Lauren M. Weiss, Lisa Kaltenegger, Michael C. Liu, Niall Deacon, Sebastien Lepine, Steve B. Howell, Thomas Barclay, Thomas Henning, Tom Greene, Travis Barman","submitted_at":"2015-01-15T20:24:52Z","abstract_excerpt":"Small, cool planets represent the typical end-products of planetary formation. Studying the archi- tectures of these systems, measuring planet masses and radii, and observing these planets' atmospheres during transit directly informs theories of planet assembly, migration, and evolution. Here we report the discovery of three small planets orbiting a bright (Ks = 8.6 mag) M0 dwarf using data collected as part of K2, the new transit survey using the re-purposed Kepler spacecraft. Stellar spectroscopy and K2 photometry indicate that the system hosts three transiting planets with radii 1.5-2.1 R_E"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.03798","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"}