{"id":"W4280631862","doi":"10.3847/2041-8213/ac6756","title":"First Sagittarius A* Event Horizon Telescope Results. VI. Testing the Black Hole Metric","year":2022,"lang":"en","type":"article","venue":"The Astrophysical Journal Letters","topic":"Astrophysical Phenomena and Observations","field":"Physics and Astronomy","cited_by":652,"is_retracted":false,"has_abstract":true,"ca_institutions":"Canadian Institute for Theoretical Astrophysics; University of Toronto; Perimeter Institute; University of Waterloo; Canadian Institute for Advanced Research; McGill University","funders":"Los Alamos National Laboratory; Oak Ridge National Laboratory; Office of International Science and Engineering; National Key Research and Development Program of China; Japan Society for the Promotion of Science; Physics Division, National Center for Theoretical Sciences; National Nuclear Security Administration; Toray Science Foundation; East Asian Core Observatories Association; Institut Périmètre de physique théorique; Agencia Nacional de Investigación y Desarrollo; Ministry of Science and ICT, South Korea; Istituto Nazionale di Fisica Nucleare; National Astronomical Observatory of Japan; Universidad Nacional Autónoma de México; Recruitment Program of Global Experts; Shanghai Jiao Tong University; Academy of Finland; Max-Planck-Gesellschaft; Centre National de la Recherche Scientifique; Ministry of Education, India; National Natural Science Foundation of China; National Research Foundation of Korea; Ministerio de Ciencia, Innovación y Universidades; Nuclear Safety and Security Commission; Generalitat Valenciana; National Science Foundation; China Postdoctoral Science Foundation; Instituto de Astrofísica de Andalucía; Deutsche Forschungsgemeinschaft; Nederlandse Organisatie voor Wetenschappelijk Onderzoek; Chinese Academy of Sciences; Academia Sinica; Junta de Andalucía; Universiteit van Amsterdam; Natural Sciences and Engineering Research Council of Canada; Netherlands eScience Center; European Southern Observatory; John Templeton Foundation; China Scholarship Council; Ministry of Education, Culture, Sports, Science and Technology; Radboud Universiteit; University of Pretoria; National Research Foundation; Compute Canada; Office of Science; Simons Foundation; Joint Institute for Computational Fundamental Science; University of Arizona; Smithsonian Institution; International Max Planck Research School for Environmental, Cellular and Molecular Microbiology; Vetenskapsrådet; U.S. Department of Energy; European Commission; Leverhulme Trust; National Radio Astronomy Observatory; Korea Astronomy and Space Science Institute; Science and Technology Facilities Council; Universiteit Leiden; Associated Universities; Space Telescope Science Institute; National Center for Theoretical Sciences; National Institutes of Natural Sciences; Government of Canada; Dirección General de Asuntos del Personal Académico, Universidad Nacional Autónoma de México; Ministerio de Ciencia e Innovación; Consejo Nacional de Ciencia y Tecnología; Consejo Superior de Investigaciones Científicas; University of Chicago; National Aeronautics and Space Administration; Gordon and Betty Moore Foundation; Flatiron Health","keywords":"Event horizon; Sagittarius A*; Black hole (networking); Metric (unit); Horizon; Physics; Astrophysics; Telescope; Event (particle physics); Astronomy; Galactic Center; Computer science; Computer security; Engineering; Galaxy","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":["sts"],"consensus_categories":[],"category_scores_codex":[0.0004117543,0.0002978385,0.0002946549,0.00007277687,0.002717352,0.0002514696,0.001133275,0.00001259995,0.0001228575],"category_scores_gemma":[0.00004433162,0.0001787245,0.0003603169,0.001137886,0.0002795508,0.0002046883,0.0004814417,0.001645469,0.0001212602],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001656857,"about_ca_system_score_gemma":0.00007669364,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0001531804,"about_ca_topic_score_gemma":6.372288e-7,"domain_scores_codex":[0.9973916,0.000341714,0.0005302166,0.0003204765,0.0007768574,0.0006391666],"domain_scores_gemma":[0.9980898,0.0006584452,0.0004484946,0.000546665,0.0000883792,0.0001681483],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"simulation_or_modeling","study_design_gemma":"observational","study_design_scores_codex":[0.0001424472,0.0004361504,0.0004375073,0.000003358121,0.0002447951,0.00001868308,0.0006384948,0.9085797,0.04411733,0.005815911,0.01764973,0.02191587],"study_design_scores_gemma":[0.01579306,0.00949678,0.4329475,0.0002954887,0.002334399,0.00005616455,0.01722599,0.2228411,0.003371211,0.02291158,0.2676193,0.005107427],"study_design_candidate":"simulation_or_modeling","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9384843,0.00002013457,0.0331614,0.02681234,0.0003728245,0.0003206126,0.00009826032,0.00003756082,0.0006925727],"genre_scores_gemma":[0.9945753,6.999961e-7,0.001400772,0.001085556,0.002653031,0.0000501683,0.00002127992,0.00004223497,0.0001709948],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.6857386,"threshold_uncertainty_score":0.998581,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01891503165035073,"score_gpt":0.2257307686073747,"score_spread":0.206815736957024,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). 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