{"paper":{"title":"CHEOPS observations confirm nodal precession in the WASP-33 system","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"A. Bonfanti, A. Brandeker, A. C. M. Correia, A. Collier Cameron, A. Deline, A. Derekas, A. Erikson, A. E. Simon, A. Fortier, A. Heitzmann, A. Lecavelier des Etangs, A. M. S. Smith, B. Edwards, B. Mer\\'in, B.-O. Demory, C. Broeg, Ch. Helling, C. Mordasini, C. M. Persson, D. Barrado, D. Ehrenreich, D. Gandolfi, D. Magrin, D. Piazza, D. Pollacco, D. Queloz, D. S\\'egransan, E. Pall\\'e, E. Villaver, G. Olofsson, G. Peter, G. Piotto, G. Scandariato, Gy. M. Szab\\'o, H. Rauer, I. Pagano, I. Ribas, I. Walter, J. A. Egger, J. Asquier, J. Cabrera, J. Hasiba, J. Korth, J. Laskar, J. Venturini, J.-V. Harre, K. Gazeas, K. G. Isaak, K. W. F. Lam, L. Borsato, L. Fossati, L. L. Kiss, M. B. Davies, M. Deleuil, M. Fridlund, M. Gillon, M. G\\\"udel, M. J. Hooton, M. Lendl, M. N. G\\\"unther, M. Stalport, N. A. Walton, N. Billot, N. C. Santos, N. Rando, O. D. S. Demangeon, P. E. Cubillos, P. F. L. Maxted, R. Alonso, R. Ottensamer, R. Ragazzoni, S. C. C. Barros, S. G. Sousa, S. Hoyer, S. Salmon, S. Sulis, S. Udry, S. Ulmer-Moll, S. Wolf, Sz. Csizmadia, Sz. Kalman, T. B\\'arczy, T. G. Wilson, V. Nascimbeni, V. Van Grootel, V. Viotto, W. Baumjohann, W. Benz, Y. Alibert","submitted_at":"2024-12-11T17:21:03Z","abstract_excerpt":"Aims: We aim to observe the transits and occultations of WASP-33b, which orbits a rapidly-rotating $\\delta$ Scuti pulsator, with the goal of measuring the orbital obliquity via the gravity-darkening effect, and constraining the geometric albedo via the occultation depth. Methods: We observed four transits and four occultations with CHEOPS, and employ a variety of techniques to remove the effects of the stellar pulsations from the light curves, as well as the usual CHEOPS systematic effects. We also performed a comprehensive analysis of low-resolution spectral and Gaia data to re-determine the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.08557","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/2412.08557/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"}