{"paper":{"title":"NEID Reveals that The Young Warm Neptune TOI-2076 b Has a Low Obliquity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Adam Kowalski, Andrea Lin, Arpita Roy, Arvind F. Gupta, Caleb I. Canas, Chad Bender, Christian Schwab, Cristobal Petrovich, Fei Dai, Gudmundur Stefansson, Heather Cegla, Jacob Luhn, Jason Wright, Jessica Libby-Roberts, Jiayin Dong, Joe Ninan, John Wisniewski, Josh Winn, Lauren Doyle, Leslie Hebb, Michael McElwain, Paul Robertson, Rae Holcomb, Robert C. Frazier, Ryan Terrien, Samuel Halverson, Samuel W. Yee, Shubham Kanodia, Suvrath Mahadevan, Suzanne Hawley","submitted_at":"2022-12-12T22:08:04Z","abstract_excerpt":"TOI-2076 b is a sub-Neptune-sized planet ($R= 2.39 \\pm 0.10 {R_\\oplus}$) that transits a young ($204 \\pm 50 {MYr}$) bright ($V = 9.2$) K-dwarf hosting a system of three transiting planets. Using spectroscopic observations with the NEID spectrograph on the WIYN 3.5 m Telescope, we model the Rossiter-McLaughlin effect of TOI-2076 b, and derive a sky-projected obliquity of $\\lambda=-3_{-15}^{+16\\:\\circ}$. Using the size of the star ($R=0.775 \\pm0.015 {R_\\odot}$), and the stellar rotation period ($P_{\\mathrm{rot}}=7.27\\pm0.23$ days), we estimate an obliquity of $\\psi=18_{-9}^{+10\\:\\circ}$ ($\\psi <"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.06266","kind":"arxiv","version":2},"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/2212.06266/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"}