{"paper":{"title":"J1250+0455AB an ultracool binary in a hierarchical triple system","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Sozzetti, Cedric Plantet, E. Pinna, Fabio Rossi, Felice Cusano, Gemma Cheng, Guido Agapito, Hugh R.A. Jones, R. L. Smart, Sayan Baig","submitted_at":"2025-07-31T16:26:37Z","abstract_excerpt":"We report the discovery of the ultracool dwarf binary system J1250+0455AB, a low-mass (M$_\\odot$$_\\mathrm{tot} <$ 0.2 M$_\\odot$) system in which the components straddle the M/L dwarf boundary. The binary was resolved through near-infrared adaptive optics imaging with LUCI1-SOUL on the Large Binocular Telescope, revealing a projected angular separation of 0.17 $\\pm$ 0.015$\\arcsec$, which, combined with a system distance of $71 \\pm 5.8$\\,pc, corresponds to a physical separation of 12.2 $\\pm$ 1.5\\,AU at a position angle of 84.8 $\\pm$ 0.2{\\deg}. We estimated the orbital period of J1250+0455AB to b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.23705","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/2507.23705/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"}