{"paper":{"title":"A low-mass triple system with a wide L/T transition brown dwarf component: NLTT 51469AB/SDSS 2131-0119","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. P\\'erez-Garrido, B. Gauza, B. Pantoja, J. S. Jenkins, M. R. Zapatero Osorio, N. Lodieu, R. Rebolo, S. Velasco, V. J. S. B\\'ejar","submitted_at":"2019-05-03T15:14:00Z","abstract_excerpt":"We demonstrate that the previously identified L/T transition brown dwarf SDSS J213154.43-011939.3 (SDSS 2131-0119) is a widely separated (82.3'', $\\sim$3830 au) common proper motion companion to the low-mass star NLTT 51469, which we reveal to be a close binary itself, separated by 0.64''$\\pm$0.01'' ($\\sim$30 au). We find the proper motion of SDSS 2131-0119 of $\\mu_{\\alpha}\\cos\\delta=-100\\pm20$, $\\mu_{\\delta}=-230\\pm20$ mas/yr consistent with the proper motion of the primary provided by Gaia DR2: $\\mu_{\\alpha}\\cos\\delta=-95.49\\pm0.96$, $\\mu_{\\delta}=-239.38\\pm0.96$ mas/yr. Based on optical and"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.01217","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"}