{"id":"W4393221670","doi":"10.3847/2041-8213/ad2df0","title":"First Sagittarius A* Event Horizon Telescope Results. VII. Polarization of the Ring","year":2024,"lang":"en","type":"article","venue":"The Astrophysical Journal Letters","topic":"Astrophysics and Cosmic Phenomena","field":"Physics and Astronomy","cited_by":103,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Lethbridge; 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; High Energy Physics; National Key Research and Development Program of China; Agencia Estatal de Investigación; National Institutes of Natural Sciences; Japan Society for the Promotion of Science; National Nuclear Security Administration; Office of Science; Toray Science Foundation; Institut Périmètre de physique théorique; Agencia Nacional de Investigación y Desarrollo; Istituto Nazionale di Fisica Nucleare; Shanghai Jiao Tong University; Centre National de la Recherche Scientifique; Max-Planck-Gesellschaft; Generalitat Valenciana; National Science Foundation; China Postdoctoral Science Foundation; Deutsche Forschungsgemeinschaft; Nederlandse Organisatie voor Wetenschappelijk Onderzoek; Instituto de Astrofísica de Andalucía; Chinese Academy of Sciences; Fundación Bancaria Caixa d'Estalvis i Pensions de Barcelona; Academia Sinica; Junta de Andalucía; Universiteit van Amsterdam; European Southern Observatory; Netherlands eScience Center; John Templeton Foundation; China Scholarship Council; Ministry of Education, Culture, Sports, Science and Technology; Radboud Universiteit; National Research Foundation; Compute Canada; Joint Institute for Computational Fundamental Science; University of Arizona; Smithsonian Institution; International Max Planck Research School for Environmental, Cellular and Molecular Microbiology; European Commission; Leverhulme Trust; National Radio Astronomy Observatory; Fundação de Amparo à Pesquisa do Estado de São Paulo; Vetenskapsrådet; National Natural Science Foundation of China; U.S. Department of Energy; National Astronomical Observatory of Japan; Associated Universities; Consejo Superior de Investigaciones Científicas; University of Chicago; East Asian Core Observatories Association; Gordon and Betty Moore Foundation; Ministerio de Ciencia, Innovación y Universidades; National Aeronautics and Space Administration; Dirección General de Asuntos del Personal Académico, Universidad Nacional Autónoma de México; Ministerio de Ciencia e Innovación; Korea Astronomy and Space Science Institute; Science and Technology Facilities Council; Universiteit Leiden; Flatiron Health","keywords":"Event horizon; Sagittarius; Physics; Astronomy; Polarization (electrochemistry); Sagittarius A*; Telescope; Astrophysics; Horizon; Galactic Center; Stars; Chemistry; Milky Way","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":[0.001246978,0.0005546059,0.0002900541,0.0005847101,0.0004577787,0.001173797,0.000489858,0.0004727785,0.00174163],"category_scores_gemma":[0.0009868137,0.0002679573,0.001233668,0.0005512699,0.0003059267,0.0004940206,0.0005562853,0.0004104802,0.00105358],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0005981771,"about_ca_system_score_gemma":0.0003309074,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.006929333,"about_ca_topic_score_gemma":0.007912935,"domain_scores_codex":[0.9995257,0.00009284962,0.00002331459,0.0001224388,0.0001512932,0.00008436496],"domain_scores_gemma":[0.9990304,0.0001536529,0.0001789111,0.000296607,0.0002424461,0.00009803932],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.001645406,0.0004962271,0.5446215,0.0004782343,0.001425434,0.001010252,0.0007174034,0.114327,0.20236,0.007270436,0.03448822,0.09115988],"study_design_scores_gemma":[0.0001409456,0.000212624,0.7164829,0.00006250704,0.0002649431,0.0006129089,0.0002872854,0.1768719,0.07500184,0.003153616,0.02671312,0.0001954617],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.918298,0.0004081022,0.03127397,0.0005040757,0.0001630473,0.00008678943,0.02763621,0.003379392,0.0182505],"genre_scores_gemma":[0.9679807,0.00008731425,0.009407942,0.0001018555,0.00004553713,0.0000291377,0.0205633,0.0004929963,0.001291254],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.006929333,"threshold_uncertainty_score":0.01377803,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.005708581801523478,"score_gpt":0.2063457176288307,"score_spread":0.2006371358273072,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). 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