{"paper":{"title":"$\\xi^1$ CMa: An Extremely Slowly Rotating Magnetic B0.7 IV Star","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Gregg Wade, Huib Henrichs, Jason Grunhut, Matt Shultz, the MiMeS Collaboration, Thomas Rivinius, Wagner Marcolino","submitted_at":"2014-07-31T18:11:10Z","abstract_excerpt":"We present our analysis of 6 years of ESPaDOnS spectropolarimetry of the magnetic $\\beta$ Cep star $\\xi^1$ CMa (B0.7 IV). This high-precision magnetometry is consistent with a rotational period $P{\\rm rot} >$ 40 yr. Absorption line profiles can be reproduced with a non-rotating model. We constrain $R_*$, $L_*$, and the stellar age via a Baade-Wesselink analysis. Spindown due to angular momentum loss via the magnetosphere predicts an extremely long rotational period if the magnetic dipole $B_{\\rm d} > 6$ kG, a strength also inferred by the best-fit sinusoids to the longitudinal magnetic field m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.8505","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"}