{"paper":{"title":"A new massive double-lined spectroscopic binary system: The Wolf-Rayet star WR 68a","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"2), (2) Facultad de Ciencias Exactas, (3) Instituto de Astrof\\'isica de La Plata, (4) Departamento de F\\'isica y Astronom\\'ia, (5) Las Campanas Observatory, A. Collado (1, Argentina, Carnegie Observatories, Chile, Chile), CONICET, de la Tierra y del Espacio (ICATE-CONICET), Facultad de Ciencias Astron\\'omicas y Geof\\'isicas, F\\'isicas y Naturales, La Serena, N. Morrell (5) ((1) Instituto de Ciencias Astron\\'omicas, R. Gamen (3), R. H. Barb\\'a (4), San Juan, Universidad de La Serena, Universidad Nacional de La Plata, Universidad Nacional de San Juan","submitted_at":"2015-09-24T00:55:05Z","abstract_excerpt":"Double-lined spectroscopic binary systems, containing a Wolf-Rayet and a massive O-type star, are key objects for the study of massive star evolution because these kinds of systems allow the determination of fundamental astrophysical parameters of their components. We have performed spectroscopic observations of the star WR 68a as part of a dedicated monitoring program of WR stars to discover new binary systems. We identified spectral lines of the two components of the system and disentangled the spectra. We measured the radial velocities in the separated spectra and determined the orbital sol"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.07192","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"}