{"id":"W3082999855","doi":"10.1051/0004-6361/202038574","title":"An extremely hot white dwarf with a rapidly rotating K-type subgiant companion: UCAC2 46706450","year":2020,"lang":"en","type":"article","venue":"Astronomy and Astrophysics","topic":"Stellar, planetary, and galactic studies","field":"Physics and Astronomy","cited_by":10,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"Lawrence Berkeley National Laboratory; National Astronomical Observatories, Chinese Academy of Sciences; Instituto de Astrofísica de Canarias; Office of Science; Max-Planck-Institut für Astronomie; Smithsonian Astrophysical Observatory; National Development and Reform Commission; Max-Planck-Institut für Astrophysik; Nuclear Safety and Security Commission; Agència de Gestió d'Ajuts Universitaris i de Recerca; Ministério da Ciência, Tecnologia e Inovação; Queen's University; Queen's University Belfast; Chinese Academy of Sciences; University of Oxford; York University; Carnegie Institution for Science; University of Colorado Boulder; National Astronomical Research Institute of Thailand; Universidad Nacional Autónoma de México; Space Telescope Science Institute; Leibniz-Gemeinschaft; University of Notre Dame; Carnegie Mellon University; Alfred P. Sloan Foundation; University of Washington; European Space Agency; Johns Hopkins University; Carnegie Institution of Washington; University of Utah; Ohio State University; U.S. Department of Energy; Smithsonian Institution; New Mexico State University; University of Portsmouth; Vanderbilt University; Yale University; National Aeronautics and Space Administration","keywords":"Subgiant; White dwarf; Radial velocity; Stellar rotation; Rotation period; Luminosity; RADIUS; Stellar evolution; Spectral line","routes":{"ca_aff":false,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.00009952453,0.0003424531,0.0003454911,0.0006012362,0.001226382,0.0004071436,0.0003962291,0.0005744902,0.001288715],"category_scores_gemma":[0.0001742136,0.0001389646,0.0001267419,0.0005514544,0.0002780458,0.0002701014,0.0005594064,0.0003707781,0.0004836072],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0004224579,"about_ca_system_score_gemma":0.0002091871,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.01076844,"about_ca_topic_score_gemma":0.00844591,"domain_scores_codex":[0.999895,0.0000060675,0.000004393767,0.00003971416,0.00002429167,0.00003053292],"domain_scores_gemma":[0.9997881,0.000006829671,0.00002959384,0.00001401745,0.00001440152,0.0001470476],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.001231659,0.0008830376,0.7714927,0.0001992988,0.0001561086,0.03680564,0.001492233,0.003506063,0.1298592,0.002246753,0.0120205,0.04010679],"study_design_scores_gemma":[0.00007169414,0.0007504706,0.9468053,0.00001829403,0.00003829658,0.022387,0.0004962092,0.006290245,0.008432829,0.0003935274,0.01427031,0.00004579555],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9969391,0.0002044685,0.0002212719,0.00007754459,0.00001857449,0.00001119684,0.000175799,0.00004745045,0.002304731],"genre_scores_gemma":[0.9981177,0.00003619209,0.0003115685,0.00006807836,0.0000169566,0.000003408947,0.0004801188,0.000005208076,0.0009606619],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01076844,"threshold_uncertainty_score":0.02141154,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01546669361062797,"score_gpt":0.2117473011092505,"score_spread":0.1962806074986226,"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."}}