{"paper":{"title":"Modelling Deuterated Isotopologues of Methanol toward the Pre-Stellar Core L1544","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"060-0819, 19 Mira street, (2) Ural Federal University, (3) CY Cergy Paris Universit\\'e, (4) Institute of Low Temperature Science, 620002, 85748 Garching bei M\\\"unchen, A.I. Vasyunin (2), CNRS, E. Redaelli (1), F-95000 Cergy, F. Dulieu (3), France, Germany, Gie{\\ss}enbachstra{\\ss}e 1, Hokkaido, Hokkaido University, Japan), LERMA, N. Watanabe (4) ((1) Max-Planck-Institut f\\\"ur extraterrestrische Physik, Observatoire de Paris, O.Sipil\\\"a (1), P. Caselli (1), PSL University, Russia, Sapporo, Sorbonne Universit\\'e, W. Riedel (1), Yekaterinburg","submitted_at":"2023-10-12T15:00:06Z","abstract_excerpt":"Aims. We aim to improve a previous model for the prediction of column densities and deuterium fractions of non- and singly deuterated methanol. Thereby, we try to identify crucial chemical and physical parameters, for which the study of deuteration could provide valuable additional constraints.\n  Methods. We employed a gas-grain chemical code to devise a model that is in agreement with the observed column density and deuterium fraction profiles of the innermost region of the pre-stellar core L1544. For that purpose, we developed a new treatment of reactive desorption, deriving an individual re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2310.08389","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2310.08389/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}