{"id":"W4404644962","doi":"10.32388/0edn2y","title":"The Milky Way Radial Metallicity Gradient as an Equilibrium Phenomenon: Why Old Stars are Metal-Rich","year":2024,"lang":"en","type":"preprint","venue":"Qeios","topic":"Stellar, planetary, and galactic studies","field":"Physics and Astronomy","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Victoria","funders":"","keywords":"Metallicity; Milky Way; Stars; Phenomenon; Astrophysics; Physics; Astronomy","routes":{"ca_aff":true,"ca_fund":false,"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":[0.00022236,0.0001423071,0.0001639621,0.0003797954,0.0002293805,0.001086525,0.0003368234,0.000372548,0.0006400257],"category_scores_gemma":[0.001531292,0.0001088697,0.0001625112,0.0003649825,0.0004879108,0.0009301906,0.0004210923,0.0002274509,0.0002908913],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0005380156,"about_ca_system_score_gemma":0.0002083331,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.005511845,"about_ca_topic_score_gemma":0.005947282,"domain_scores_codex":[0.9999255,0.000008293417,0.000003306455,0.00003725638,0.00001079973,0.00001471052],"domain_scores_gemma":[0.9995671,0.00006412926,0.0001829769,0.00004990364,0.00006666074,0.00006923005],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.0002077663,0.00002538441,0.9484273,0.00004742916,0.00004809173,0.0002159558,0.0005826561,0.005318766,0.01892973,0.006663759,0.0008053781,0.01872783],"study_design_scores_gemma":[0.00001353571,0.00005711502,0.9570735,0.00002334232,0.00003952527,0.0002675101,0.0003890054,0.02505564,0.005164747,0.009367891,0.002527142,0.00002106127],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9966331,0.0002624506,0.001544223,0.0001594581,0.000003966247,0.000001947986,0.0001143443,0.00005168373,0.001228804],"genre_scores_gemma":[0.9992569,0.00006858189,0.0003629271,0.00002999806,0.000005359089,0.000001215924,0.00006330509,0.00001198131,0.0001997731],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.005511845,"threshold_uncertainty_score":0.01095951,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02120442626824404,"score_gpt":0.2473197873685332,"score_spread":0.2261153611002891,"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."}}