{"id":"W4407347939","doi":"10.3847/2041-8213/adacea","title":"Laboratory Rotational Spectroscopy Leads to the First Interstellar Detection of Singly Deuterated Methyl Mercaptan (CH<sub>2</sub>DSH)","year":2025,"lang":"en","type":"article","venue":"The Astrophysical Journal Letters","topic":"Molecular Spectroscopy and Structure","field":"Chemistry","cited_by":3,"is_retracted":false,"has_abstract":true,"ca_institutions":"Canadian Light Source (Canada); University of Saskatchewan","funders":"Natural Sciences and Engineering Research Council of Canada; Canadian Institutes of Health Research; Centre National de la Recherche Scientifique; Centre National d’Etudes Spatiales; Max-Planck-Gesellschaft; Canadian Light Source","keywords":"Deuterium; Spectroscopy; Molecular spectroscopy; Chemistry; Photochemistry; Analytical Chemistry (journal); Materials science; Physics; Atomic physics; Organic chemistry; Astronomy","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":[0.0002063294,0.0002537656,0.0002897032,0.00008542665,0.0004554503,0.0001527143,0.000581341,0.00007335178,0.00003253332],"category_scores_gemma":[0.00007190966,0.000162757,0.0002422069,0.000505258,0.0001787376,0.00009444453,0.00008526473,0.0009564775,0.00001761245],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002028688,"about_ca_system_score_gemma":0.00007333128,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.000007131371,"about_ca_topic_score_gemma":0.00001503021,"domain_scores_codex":[0.9983944,0.0001499871,0.0004116477,0.0002470921,0.0004522593,0.0003445882],"domain_scores_gemma":[0.9989981,0.0001406582,0.0002360225,0.0003924111,0.000140593,0.00009223831],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.0003149887,0.00003442655,0.00005023926,0.00002020816,0.0002022311,0.00001834147,0.0002635242,0.002079399,0.9945823,0.0003467923,0.001083458,0.001004106],"study_design_scores_gemma":[0.000333028,0.00008546409,0.001270103,0.00009643985,0.0001133565,0.00002236291,0.00009203416,0.0002899478,0.9962047,0.0001536923,0.001199572,0.0001392428],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9397434,0.00007443711,0.04815853,0.01149682,0.0003030974,0.0000936535,0.00002200548,0.00002495224,0.00008310525],"genre_scores_gemma":[0.9950104,0.00001102561,0.001073297,0.003307174,0.0005472052,0.000008867028,0.000004035129,0.00002463253,0.00001333821],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.05526702,"threshold_uncertainty_score":0.6637038,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.003354482083005994,"score_gpt":0.2165861733725599,"score_spread":0.213231691289554,"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."}}