{"id":"W2992517122","doi":"10.1126/science.aay3544","title":"Episodes of particle ejection from the surface of the active asteroid (101955) Bennu","year":2019,"lang":"en","type":"article","venue":"Science","topic":"Astro and Planetary Science","field":"Physics and Astronomy","cited_by":190,"is_retracted":false,"has_abstract":true,"ca_institutions":"York University; University of British Columbia","funders":"Science and Technology Facilities Council; Goddard Space Flight Center; Royal Astronomical Society; Canadian Space Agency; Centre National d’Etudes Spatiales; Jet Propulsion Laboratory; Agencia Canaria de Investigación, Innovación y Sociedad de la Información; Nuclear Safety and Security Commission; Marshall Space Flight Center; National Aeronautics and Space Administration; California Institute of Technology; Agence Nationale de la Recherche","keywords":"Asteroid; Meteoroid; Regolith; Sublimation (psychology); Astrobiology; Physics; Spacecraft; Particle (ecology); Astrophysics; Astronomy; Geology","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":[0.0001076223,0.000135547,0.0001279898,0.000571351,0.0005891658,0.0003715418,0.0001860004,0.0002812422,0.0007207597],"category_scores_gemma":[0.0003361056,0.00006525665,0.0001012515,0.0003487969,0.0002692729,0.0001827895,0.0004621359,0.0001658714,0.00009113507],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0004690346,"about_ca_system_score_gemma":0.0001048122,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.01312894,"about_ca_topic_score_gemma":0.0247195,"domain_scores_codex":[0.9999073,0.000007139975,0.00000619605,0.00002367166,0.00003189166,0.00002379987],"domain_scores_gemma":[0.9998691,0.00002467856,0.00004625937,0.00001632004,0.00001582294,0.00002779874],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0004029608,0.00006242,0.9266823,0.00007585232,0.000086063,0.002935254,0.001171547,0.001272856,0.03769282,0.0003287886,0.0005708698,0.02871823],"study_design_scores_gemma":[0.00000393425,0.0000404297,0.9941285,0.000008660441,0.000008009339,0.0008522068,0.0002522078,0.0006496988,0.00201812,0.00003825027,0.001994734,0.000005344241],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9984724,0.0001669414,0.000112402,0.00001030949,0.000003969904,0.000004143801,0.00007648116,0.000009930853,0.001143461],"genre_scores_gemma":[0.999438,0.0000283567,0.0001530931,0.000004919954,0.000002543952,0.000001014057,0.0001994601,0.000001381909,0.0001713749],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01312894,"threshold_uncertainty_score":0.02610505,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.006429264961226699,"score_gpt":0.2034074862206733,"score_spread":0.1969782212594466,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}