{"paper":{"title":"Revisiting the HIP41378 system with K2 and Spitzer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Benjamin J. Fulton, Courtney Dressing, David Berardo, David R. Ciardi, Erik Petigura, Farisa Morales, Ian J. M. Crossfield, Jessie Christiansen, John Livingston, Joshua E. Schlieder, Kevin Hardegree-Ullman, Michael Werner, Stephen Kane, Thomas P. Greene, Varoujan Gorjian","submitted_at":"2018-09-28T16:06:29Z","abstract_excerpt":"We present new observations of the multi-planet system HIP~41378, a bright star ($V$ = 8.9, $K_s$ = 7.7) with five known transiting planets. Observations in Campaign 5 of the K2 mission showed multiple transits of two Neptune-sized bodies and single transits of three larger planets ($R_P= 0.33R_J, 0.47R_J, 0.88 R_J$). K2 recently observed the system again in Campaign 18. We observe one new transit each of two of the larger planets, HIP41378~d and~f, giving maximal possible orbital periods of 1114 and 1084 days, respectively. Other possible periods include integer divisions of these maximum val"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.11116","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"}