{"paper":{"title":"Tidally Heated Sub-Neptunes, Refined Planetary Compositions, and Confirmation of a Third Planet in the TOI-1266 System","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Aida Behmard, Akihiko Fukui, Andrew Vanderburg, Carolyn Heffner, David Latham, Diana Roderick, Gareb Fern\\'andez-Rodr\\'iguez, Gautam Vasisht, Heather A. Knutson, Isaac Wilson, Izuru Fukuda, Jennifer Milburn, Jerome P. de Leon, John F. Stone, John H. Livingston, Jonathan Gomez Barrientos, Judith Korth, Kai Ikuta, Kathleen Koviak, Keisuke Isogai, Kiyoe Kawauchi, Konstantin Batygin, Masahiro Ikoma, Mayuko Mori, Mercedes L\\'opez-Morales, Michael Greklek-McKeon, Morgan Saidel, Motohide Tamura, Nobuhiko Kusakabe, Noriharu Watanabe, Norio Narita, Paul Nied, Renyu Hu, Rocio Kiman, Ryan Cloutier, Shreyas Vissapragada, Tom Barlow, W. Garrett Levine, Yayaati Chachan, Yugo Kawai, Yuya Hayashi","submitted_at":"2024-09-24T18:08:01Z","abstract_excerpt":"TOI-1266 is a benchmark system of two temperate ($<$ 450 K) sub-Neptune-sized planets orbiting a nearby M dwarf exhibiting a rare inverted architecture with a larger interior planet. In this study, we characterize transit timing variations (TTVs) in the TOI-1266 system using high-precision ground-based follow-up and new TESS data. We confirm the presence of a third exterior non-transiting planet, TOI-1266 d (P = 32.5 d, $M_d$ = 3.68$^{+1.05}_{-1.11} M_{\\oplus}$), and combine the TTVs with archival radial velocity (RV) measurements to improve our knowledge of the planetary masses and radii. We "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.16374","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/2409.16374/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"}