{"id":"W4280589633","doi":"10.3847/2041-8213/ac6674","title":"First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way","year":2022,"lang":"en","type":"article","venue":"The Astrophysical Journal Letters","topic":"Astrophysical Phenomena and Observations","field":"Physics and Astronomy","cited_by":1778,"is_retracted":false,"has_abstract":true,"ca_institutions":"Western University; 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; Army Research Office; 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; Office of Science; Toray Science Foundation; East Asian Core Observatories Association; Institut Périmètre de physique théorique; Agencia Nacional de Investigación y Desarrollo; 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; National Research Foundation; University of Pretoria; Compute Canada; 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; Universitat de València; National Center for Theoretical Sciences; 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 Institutes of Natural Sciences; Government of Canada; National Aeronautics and Space Administration; Gordon and Betty Moore Foundation; Flatiron Health","keywords":"Sagittarius A*; Supermassive black hole; Galactic Center; Milky Way; Sagittarius; Physics; Event horizon; Astronomy; Center (category theory); Astrophysics; Shadow (psychology); Telescope; Black hole (networking); Event (particle physics); Galaxy; Psychology; Computer science; Computer security","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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0006545609,0.0003383937,0.0003813593,0.0003660048,0.0006170986,0.000811881,0.0004905398,0.0003720738,0.00134193],"category_scores_gemma":[0.0007689368,0.0001951463,0.001122189,0.0002601529,0.0002739864,0.0004700515,0.0006143343,0.0003470544,0.0003540315],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001437418,"about_ca_system_score_gemma":0.0006199382,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.02805399,"about_ca_topic_score_gemma":0.02706441,"domain_scores_codex":[0.9996965,0.00005049216,0.00001229773,0.00006277233,0.0001145773,0.00006341192],"domain_scores_gemma":[0.9995806,0.00008671925,0.00007917669,0.00008010351,0.0001008179,0.00007264103],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0008966941,0.0003250356,0.6371787,0.0001825895,0.0007895715,0.002137881,0.0005234453,0.2453175,0.0397742,0.01035881,0.008535814,0.05397981],"study_design_scores_gemma":[0.0001826711,0.0003167044,0.4908684,0.00005371668,0.0002325868,0.0008074641,0.000815912,0.4621725,0.02295709,0.005681854,0.0157723,0.0001387826],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9863534,0.0002101124,0.003169782,0.0002654527,0.0000397846,0.00001694852,0.001448066,0.0003621446,0.008134326],"genre_scores_gemma":[0.996479,0.00004248408,0.001432742,0.00003308193,0.000009050655,0.000005031312,0.00133141,0.00003566076,0.0006315593],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.02805399,"threshold_uncertainty_score":0.05578142,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.009748524090726456,"score_gpt":0.2094444172539013,"score_spread":0.1996958931631748,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). 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