{"paper":{"title":"Time-Series Analysis of Broadband Photometry of Neptune from K2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM","astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Amy A. Simon, Benoit Mosser, Douglas A. Caldwell, Enrico Corsaro, Francois-Xavier Schmider, G.R. Davies, Heidi B. Hammel, Jack J. Lissauer, Jason F. Rowe, John E. Gizis, Jonathan J. Fortney, Knicole D. Colon, Mark S. Marley, Michael R. Haas, Othman Benomar, Patrick Boumier, Patrick Gaulme, Rafael A. Garcia, Sarah L. Casewell, Thomas Barclay, Victor Silva Aguirre, William J. Chaplin","submitted_at":"2017-02-09T02:41:15Z","abstract_excerpt":"We report here on our search for excess power in photometry of Neptune collected by the K2 mission that may be due to intrinsic global oscillations of the planet Neptune. To conduct this search, we developed new methods to correct for instrumental effects such as intrapixel variability and gain variations. We then extracted and analyzed the time-series photometry of Neptune from 49 days of nearly continuous broadband photometry of the planet. We find no evidence of global oscillations and place an upper limit of $\\sim$5 ppm at 1000 \\uhz\\ for the detection of a coherent signal. With an observed"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.02943","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"}