{"paper":{"title":"The K2-24 planetary system revisited by CHEOPS","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"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. Leleu, A.M.S. Smith, B. Edwards, B. Mer\\'in, B.-O. Demory, B. Ulmer, C. Broeg, Ch. Helling, C. Mordasini, D. Barrado Navascues, D. Ehrenreich, D. Gandolfi, D. Magrin, D. Pollacco, D. Queloz, D. S\\'egransan, E. Pall\\'e, E. Villaver, F. Biondi, F. Kerschbaum, G. Mantovan, G. Olofsson, G. Peter, G. Piotto, G. Scandariato, H. Rauer, I. Pagano, I. Ribas, J. Korth, J. Laskar, J. Venturini, K. Gazeas, K.G. Isaak, K.W.F. Lam, L. Borsato, L. Delrez, L. Fossati, L. Kiss, M.B. Davies, M.-D. Busch, M. Deleuil, M. Fridlund, M. Gillon, M. G\\\"udel, M. Gy. Szab\\'o, 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, P. Leonardi, R. Alonso, R. Luque, R. Ottensamer, R. Ragazzoni, R. Southworth, S.C. Barros, S.G. Sousa, S. Sulis, S. Udry, Sz. Csizmadia, T. B\\'arczy, T. Beck, T.G. Wilson, T. Zingales, V. Nascimbeni, V. Van Grootel, W. Baumjohann, W. Benz, Y. Alibert","submitted_at":"2024-09-04T18:00:03Z","abstract_excerpt":"K2-24 is a planetary system composed of two transiting low-density Neptunians locked in an almost perfect 2:1 resonance and showing large TTVs, i.e., an excellent laboratory to search for signatures of planetary migration. Previous studies performed with K2, Spitzer and RV data tentatively claimed a significant non-zero eccentricity for one or both planets, possibly high enough to challenge the scenario of pure disk migration through resonant capture. With 13 new CHEOPS light curves (seven of planet -b, six of planet -c), we carried out a global photometric and dynamical re-analysis by includi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.02995","kind":"arxiv","version":3},"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/2409.02995/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"}