{"paper":{"title":"The GRAVITY Coud\\'e Infrared Adaptive Optics (CIAO) system for the VLT Interferometer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"(2) LESIA-Observatoire de Paris, (3) MPE, (4) ESO, (5) SIM, (6) IPAG, (7) University of Cologne), Antonio Amorim (5), Armin Huber (1), Casey Deen (1), Christian Straubmeier (7) ((1) MPIA Heidelberg, Enrico Fedrigo (4), Eric Gendron (2), Frank Eisenhauer (3), Garching, Grenoble, Guy Perrin (2), Jos\\'e Ramos (1), Karine Perraut (6), Lisbon, Marcos Suarez-Valles (4), Pengqian Yang (1), Rainer Lenzen (1), Ralf Klein (1), Ralf-Rainer Rohloff (1), Sarah Kendrew (1), Stefan Hippler (1), Udo Neumann (1), Vianak Naranjo (1), Werner Laun (1), Wolfgang Brandner (1), Yann Cl\\'enet (2)","submitted_at":"2012-07-12T13:00:38Z","abstract_excerpt":"GRAVITY is a second generation instrument for the VLT Interferometer, designed to enhance the near-infrared astrometric and spectro-imaging capabilities of VLTI. Combining beams from four telescopes, GRAVITY will provide an astrometric precision of order 10 micro-arcseconds, imaging resolution of 4 milli-arcseconds, and low and medium resolution spectro-interferometry, pushing its performance far beyond current infrared interfero- metric capabilities. To maximise the performance of GRAVITY, adaptive optics correction will be implemented at each of the VLT Unit Telescopes to correct for the eff"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.2945","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"}