{"paper":{"title":"Study of Eclipsing Binary and Multiple Systems in OB Associations V: MQ Cen in Crux OB1","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"C. Nitschelm, E. Tunc, H. Bakis, J. Janik, J. Liska, M. Zejda, S. Bilir, V. Bakis, Z. Mikulasek","submitted_at":"2019-06-05T10:04:42Z","abstract_excerpt":"The early-type massive binary MQ Cen (P$_{orb}$=3.7 d) has been investigated by means of high-resolution ($R\\sim48\\,000$) spectral analysis and multi-band (Johnson $BVRI$ and Str\\\"{o}mgren $vby$) light curve modeling. The physical parameters of the components have been found to be $M_1= 4.26\\pm0.10$ M$_{\\odot}$, $R_1= 3.72\\pm0.05 $R$_{\\odot}$, $T_{\\rm eff1}=16\\,600\\pm520$ K, and $M_2= 5.14\\pm0.09 $M$_{\\odot}$, $R_2= 7.32\\pm0.03 $R$_{\\odot}$, $T_{\\rm eff2}=15\\,000\\pm500$ K for the primary and secondary, respectively. The orbital inclination is $i=87.0\\pm0.2$ deg. The distance to MQ Cen has been"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.01913","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1906.01913/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"}