{"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":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0003420094,0.0002122076,0.0002416643,0.0000217102,0.001043176,0.0001610034,0.001169305,0.00001652744,0.00004304305],"category_scores_gemma":[0.000009343908,0.00009267114,0.0004673037,0.0004544898,0.0003631195,0.0001175804,0.0003619185,0.0007138888,0.0001903921],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00003329978,"about_ca_system_score_gemma":0.0001342306,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00003840214,"about_ca_topic_score_gemma":5.377397e-7,"domain_scores_codex":[0.998161,0.0002064995,0.0003898061,0.0001666854,0.0005505126,0.0005255105],"domain_scores_gemma":[0.9986414,0.000175467,0.0003642987,0.0005932502,0.0001207349,0.0001048308],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.0002259162,0.0005843869,0.001441173,0.00001187049,0.000797234,0.000008354473,0.00106297,0.00293299,0.2626946,0.2170392,0.02384828,0.4893531],"study_design_scores_gemma":[0.003871608,0.001870959,0.156671,0.0003371708,0.0005773905,0.00002835522,0.01172408,0.009781381,0.04172895,0.7407922,0.03129876,0.001318258],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9835569,0.00002878802,0.01137557,0.002704436,0.0005694094,0.000221663,0.00003502356,0.00002163651,0.001486598],"genre_scores_gemma":[0.9972969,0.00001143651,0.0001483255,0.00002885268,0.001816904,0.00001530831,0.00000285167,0.00002967806,0.000649685],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.523753,"threshold_uncertainty_score":0.802337,"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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