{"paper":{"title":"Discovery of a magnetic field in the O9 sub-giant star HD 57682 by the MiMeS Collaboration","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"C. Neiner, D. Bohlender, D.H. Cohen, E. Alecian, G.A. Wade, H.F. Henrichs, J.-C. Bouret, J.H. Grunhut, N. St-Louis, O. Kochukhov, R.H.D. Townsend, the MiMeS Collaboration, V. Petit, W.L.F. Marcolino","submitted_at":"2009-10-01T16:54:56Z","abstract_excerpt":"We report the detection of a strong, organised magnetic field in the O9IV star HD 57682, using spectropolarimetric observations obtained with ESPaDOnS at the 3.6-m Canada-France-Hawaii Telescope within the context of the Magnetism in Massive Stars (MiMeS) Large Program. From the fitting of our spectra using NLTE model atmospheres we determined that HD 57682 is a $17^{+19}_{-9}$ M$_{\\odot}$ star with a radius of $7.0^{+2.4}_{-1.8}$ R$_\\odot$, and a relatively low mass-loss rate of $1.4^{+3.1}_{-0.95}\\times10^{-9}$ M$_{\\odot}$ yr$^{-1}$. The photospheric absorption lines are narrow, and we use t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.0214","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"}