{"paper":{"title":"CHEOPS finds KELT-1b darker than expected in visible light: Discrepancy between the CHEOPS and TESS eclipse depths","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.EP","authors_text":"A. Bonfanti, A. Brandeker, A. Collier Cameron, A. Deline, A. Erikson, A.E. Simon, A. Fortier, A. Lecavelier des Etangs, A.M.S. Smith, B.-O. Demory, C. Broeg, C. Corral Van Damme, C. Lovis, D. Barrado y Navascues, D. Ehrenreich, D. Gandolfi, D. Kitzmann, D. Magrin, D. Piazza, D. Pollacco, D. Queloz, D. S\\'egransan, E. Kopp, E. Meier Valdes, E. Pall\\'e, G. Anglada, G. Olofsson, G. Peter, G. Piotto, G. Scandariato, Gy.M. Szab\\'o, H. Parviainen, H. Rauer, I. Pagano, I. Ribas, J. Cabrera, J. Farinato, J. Laskar, K.G. Isaak, K. Heng, L. Delrez, L. Fossati, L.L. Kiss, L.M. Serrano, M.B. Davies, M. Beck, M. Deleuil, M. Fridlund, M. Gillon, M. G\\\"udel, M. Lendl, M. Mecina, M. Steller, N.A. Walton, N. Billot, N.C. Santos, N. Rando, N. Thomas, O.D.S. Demangeon, P.F.L. Maxted, P. Guterman, R. Alonso, R. Ottensamer, R. Ragazzoi, S.C.C. Barros, S. Charnoz, S.G. Sousa, S. Hoyer, S. Salmon, S. Udry, Sz. Csizmadia, T. B\\'arczy, T. Beck, T.G. Wilson, V. Nascimbeni, V. Singh, V. VanGrootel, W. Baumjohann, W. Benz, X. Bonfils, Y. Alibert","submitted_at":"2022-09-08T15:52:55Z","abstract_excerpt":"Recent TESS-based studies have suggested that the dayside of KELT-1b, a strongly-irradiated brown dwarf, is significantly brighter in visible light than what would be expected based on Spitzer observations in infrared. We observe eight eclipses of KELT-1b with CHEOPS (CHaracterising ExOPlanet Satellite) to measure its dayside brightness temperature in the bluest passband observed so far, and model the CHEOPS photometry jointly with the existing optical and NIR photometry from TESS, LBT, CFHT, and Spitzer. Our modelling leads to a self-consistent dayside spectrum for KELT-1b covering the CHEOPS"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.03890","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2209.03890/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}