{"paper":{"title":"The well-aligned orbit of WASP-84b: evidence for disc migration","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. Collier Cameron, A. H. M. J. Triaud, A. M. S. Smith, A. P. Doyle, B. J. M. Clark, B. Smalley, C. Hellier, C. Lovis, D. J. A. Brown, D. Pollacco, D. Queloz, D. R. Anderson, M. Gillon, O. D. Turner, P. F. L. Maxted","submitted_at":"2014-09-22T20:25:24Z","abstract_excerpt":"We report the sky-projected orbital obliquity (spin-orbit angle) of WASP-84b, a 0.70-$M_{\\rm Jup}$ planet in a 8.52-day orbit around a G9V/K0V star, to be $\\lambda = 0.3 \\pm 1.7^\\circ$. We obtain a true obliquity of $\\psi = 14.8 \\pm 8.0^\\circ$ from a measurement of the inclination of the stellar spin axis with respect to the sky plane. Due to the young age and the weak tidal forcing of the system, we suggest that the orbit of WASP-84b is unlikely to have both realigned and circularised from the misaligned and/or eccentric orbit likely to have arisen from high-eccentricity migration. Therefore "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.6335","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":""},"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"}