{"paper":{"title":"High Resolution Images of Orbital Motion in the Orion Trapezium Cluster with the LBT Adaptive Optics System","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Puglisi, A. Riccardi, A. Skemer, C. Arcidiacono, C.E. Woodward, C. Kulesa, D.J. Thompson, D.L. Miller, D.W. McCarthy, E. Pinna, F. Mannucci, F. Quiros-Pacheco, G. Agapito, G. Brusa, J. Argomedo, J. Brynnel, J.C. Guerra, J.M. Hill, J.R. Males, K. Boutsia, K. Follette, L. Busoni, L. Fini, L.M. Close, M. Xompero, P. Hinz, P. Stefanini, R. Briguglio, R. Green, S. Esposito, T.J. Rodigas","submitted_at":"2012-03-12T20:26:35Z","abstract_excerpt":"The new 8.4m LBT adaptive secondary AO system, with its novel pyramid wavefront sensor, was used to produce very high Strehl (75% at 2.16 microns) near infrared narrowband (Br gamma: 2.16 microns and [FeII]: 1.64 microns) images of 47 young (~1 Myr) Orion Trapezium theta1 Ori cluster members. The inner ~41x53\" of the cluster was imaged at spatial resolutions of ~0.050\" (at 1.64 microns). A combination of high spatial resolution and high S/N yielded relative binary positions to ~0.5 mas accuracies. Including previous speckle data, we analyse a 15 year baseline of high-resolution observations of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.2638","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"}