{"id":"W4417405863","doi":"10.1051/0004-6361/202557304","title":"Sibling sub-Neptunes around sibling M dwarfs: TOI-521 and TOI-912","year":2025,"lang":"en","type":"article","venue":"Astronomy and Astrophysics","topic":"Astro and Planetary Science","field":"Physics and Astronomy","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"McGill University; Western University","funders":"","keywords":"Planet; Exoplanet; Population; Degeneracy (biology); RADIUS; Planetary system; Radial velocity; Stars","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":[0.00009386962,0.0001994771,0.0002132364,0.0004087396,0.0004767065,0.000427437,0.0002149636,0.0002020439,0.0009244652],"category_scores_gemma":[0.0003190585,0.00005023442,0.0001430722,0.000458274,0.0002535866,0.0001979393,0.0004307129,0.0001550819,0.0003833873],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002922954,"about_ca_system_score_gemma":0.0001607586,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.003225935,"about_ca_topic_score_gemma":0.004559902,"domain_scores_codex":[0.9999111,0.000005334457,0.000004915846,0.00004147534,0.00001533663,0.00002187837],"domain_scores_gemma":[0.9997107,0.00001700068,0.0001175113,0.00002853294,0.00003070289,0.00009542962],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0005430495,0.00004894382,0.9213342,0.00009960675,0.00006348616,0.001519599,0.001171672,0.0003240879,0.06224973,0.0005327479,0.0005851919,0.01152761],"study_design_scores_gemma":[0.000009063849,0.00009255464,0.9902015,0.00001179256,0.00002870733,0.001871312,0.0006575942,0.0002842869,0.002198063,0.0001396392,0.004499945,0.000005503555],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9980745,0.0001197864,0.0001026537,0.00002088298,0.000005020047,0.000005601378,0.0001756062,0.000007155054,0.001488654],"genre_scores_gemma":[0.9986389,0.000049814,0.0002052559,0.00001330296,0.000007127103,0.000003062358,0.0006791786,0.000004154686,0.0003991362],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.003225935,"threshold_uncertainty_score":0.006414294,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.006299191158206247,"score_gpt":0.2062217434865388,"score_spread":0.1999225523283326,"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."}}