{"id":"W2927111475","doi":"10.1126/science.aat5330","title":"A planetesimal orbiting within the debris disc around a white dwarf star","year":2019,"lang":"en","type":"article","venue":"Science","topic":"Stellar, planetary, and galactic studies","field":"Physics and Astronomy","cited_by":167,"is_retracted":false,"has_abstract":true,"ca_institutions":"Western University","funders":"Ministerio de Asuntos Económicos y Transformación Digital, Gobierno de España; Jet Propulsion Laboratory; European Southern Observatory; Nederlandse Organisatie voor Wetenschappelijk Onderzoek; Natural Sciences and Engineering Research Council of Canada; Science and Technology Facilities Council; Instituto de Astrofísica de Canarias; European Regional Development Fund; California Institute of Technology; European Commission; Leverhulme Trust; European Space Agency; National Aeronautics and Space Administration","keywords":"Planetesimal; White dwarf; Debris; Planetary system; Debris disk; Planet; Stars","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":[0.0004618136,0.0001108875,0.0001171483,0.00003135597,0.0004047778,0.0001462357,0.0003442702,0.00001046147,0.0002149874],"category_scores_gemma":[0.00001946669,0.00006827874,0.00003083008,0.0002659538,0.0002922918,0.0001784927,0.000102213,0.0001281076,0.0002688343],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00001269732,"about_ca_system_score_gemma":0.00009443784,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0002423764,"about_ca_topic_score_gemma":0.00001527438,"domain_scores_codex":[0.9989729,0.00002414959,0.0001316755,0.0002778622,0.000275557,0.0003178534],"domain_scores_gemma":[0.9994122,0.0001552809,0.00008667485,0.0002556371,0.00003558917,0.00005464911],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.000005323014,0.00000941134,0.9962798,0.000003300775,0.0000118411,6.608361e-7,0.001199183,0.0001107579,0.0001547776,0.001103716,0.0001262599,0.0009949638],"study_design_scores_gemma":[0.0002744725,0.00007366967,0.9829001,0.00003001133,0.00002508542,0.000006292312,0.004059579,0.006940664,0.0006781242,0.002291719,0.002466961,0.0002533122],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.8856591,0.0001091946,0.0001707801,0.0002458279,0.0004647656,0.0001576567,0.000006047305,0.00001810421,0.1131685],"genre_scores_gemma":[0.9981794,9.655375e-7,0.000653815,0.0001162683,0.0001792733,0.000004249083,0.000004710828,0.000004973837,0.0008563245],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.1125203,"threshold_uncertainty_score":0.345541,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01072671656985006,"score_gpt":0.2254381163606325,"score_spread":0.2147113997907824,"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."}}