{"id":"W4319789525","doi":"10.3847/1538-4357/acaea8","title":"The Event Horizon Telescope Image of the Quasar NRAO 530","year":2023,"lang":"en","type":"article","venue":"The Astrophysical Journal","topic":"Astrophysics and Cosmic Phenomena","field":"Physics and Astronomy","cited_by":28,"is_retracted":false,"has_abstract":true,"ca_institutions":"Canadian Institute for Theoretical Astrophysics; Canadian Institute for Advanced Research; McGill University; University of Toronto; Perimeter Institute; University of Waterloo","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; Office of Science; Directorate for Mathematical and Physical Sciences; 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; 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; European Commission; Leverhulme Trust; National Radio Astronomy Observatory; Fundação de Amparo à Pesquisa do Estado de São Paulo; 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; Korea Astronomy and Space Science Institute; Science and Technology Facilities Council; Universiteit Leiden; Associated Universities; Space Telescope Science Institute; 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":"Physics; Position angle; Astrophysics; Linear polarization; Polarization (electrochemistry); Quasar; Very Long Baseline Array; Brightness; Telescope; Magnetic field; Brightness temperature; Astronomy; Optics; 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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0001739394,0.0001508243,0.000160836,0.0007028861,0.0001809187,0.0003712552,0.0002265311,0.0001577908,0.002959031],"category_scores_gemma":[0.0001442322,0.0001173894,0.0002030499,0.0004254257,0.0001275747,0.0001527027,0.0002528343,0.0002405839,0.0006126805],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0004451037,"about_ca_system_score_gemma":0.0001662298,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.01346605,"about_ca_topic_score_gemma":0.02123603,"domain_scores_codex":[0.9999357,0.000002984675,0.000001533897,0.00001398646,0.00002367759,0.00002195139],"domain_scores_gemma":[0.9998449,0.000007977582,0.00004516092,0.00001917033,0.00002667034,0.00005609808],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"observational","study_design_scores_codex":[0.0008975722,0.0002186761,0.2229819,0.0001286639,0.0001776682,0.002713849,0.0008234144,0.001476835,0.6664885,0.001732819,0.01208273,0.09027734],"study_design_scores_gemma":[0.00001414567,0.00007112811,0.9888959,0.00001128023,0.00002460711,0.0005851717,0.00008623475,0.001294545,0.004781641,0.0001043229,0.004121653,0.000009345223],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9749231,0.0003698697,0.002222364,0.0001560376,0.00002728772,0.0000208632,0.005385718,0.0004134326,0.01648125],"genre_scores_gemma":[0.9922594,0.000102112,0.002304564,0.00004982536,0.00002738552,0.000004857792,0.003446441,0.00004666967,0.001758662],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01346605,"threshold_uncertainty_score":0.02677536,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.007056356145886876,"score_gpt":0.2316105089718705,"score_spread":0.2245541528259836,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). 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