{"id":"W2924509630","doi":"10.3847/1538-4357/ab0b43","title":"Chemical Abundances of Main-sequence, Turnoff, Subgiant, and Red Giant Stars from APOGEE Spectra. II. Atomic Diffusion in M67 Stars","year":2019,"lang":"en","type":"article","venue":"The Astrophysical Journal","topic":"Stellar, planetary, and galactic studies","field":"Physics and Astronomy","cited_by":85,"is_retracted":false,"has_abstract":true,"ca_institutions":"Canadian Institute for Theoretical Astrophysics; University of Toronto","funders":"","keywords":"Stars; Red giant; Abundance (ecology); Open cluster; Spectral line; Red-giant branch; Abundance of the chemical elements; Stellar evolution; Giant star; Diffusion","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":[0.0001522586,0.0002960076,0.0002036129,0.001443887,0.000216804,0.0003706591,0.0001704068,0.0002470748,0.0007566376],"category_scores_gemma":[0.0004180787,0.000126206,0.0002373271,0.0005932882,0.00022088,0.0001750212,0.0003919175,0.0001212688,0.0003785579],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0003259149,"about_ca_system_score_gemma":0.00008175661,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.003481528,"about_ca_topic_score_gemma":0.005039065,"domain_scores_codex":[0.9999454,0.000004889141,0.00000399265,0.00002099644,0.00001345387,0.00001132122],"domain_scores_gemma":[0.9997368,0.00004317647,0.00009196419,0.00003120068,0.00003976204,0.00005700843],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0002633024,0.00002526682,0.9469374,0.00007646915,0.00007911806,0.0001374784,0.0003750746,0.001653845,0.04068683,0.000242418,0.0004303064,0.009092389],"study_design_scores_gemma":[0.000005867087,0.00002704634,0.9961877,0.000004213795,0.00001258175,0.00008597589,0.00009496554,0.001548806,0.001498363,0.00005745599,0.0004727432,0.000004182486],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.999374,0.00006378831,0.00005486917,0.000005027369,7.036785e-7,0.000001000103,0.0003271044,0.000007806766,0.0001656643],"genre_scores_gemma":[0.9977022,0.0000595341,0.0002068977,0.000006803849,0.000002777496,0.00000271241,0.001858435,0.00001124046,0.0001495032],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.003481528,"threshold_uncertainty_score":0.006922543,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.007781577810070456,"score_gpt":0.2101707463604538,"score_spread":0.2023891685503833,"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."}}