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Chemistry in Disks. IV. Benchmarking gas-grain chemical models with surface reactions
D. Semenov, F. Hersant, V. Wakelam +7
Abridged: We detail and benchmark two sophisticated chemical models developed by the Heidelberg and Bordeaux astrochemistry groups. The main goal of this study is to elaborate on a…
CI observations in the CQ Tau proto-planetary disk: evidence for a very low gas-to-dust ratio ?
E. Chapillon, B. Parise, S. Guilloteau +2
Gas and dust dissipation processes of proto-planetary disks are hardly known. Transition disks between Class II (proto-planetary disks) and Class III (debris disks) remain difficul…
Chemistry in Disks. III. -- Photochemistry and X-ray driven chemistry probed by the ethynyl radical (CCH) in DM Tau, LkCa 15, and MWC 480
Th. Henning, D. Semenov, St. Guilloteau +7
We studied several representative circumstellar disks surrounding the Herbig Ae star MWC 480 and the T Tauri stars LkCa 15 and DM Tau at (sub-)millimeter wavelengths in lines of CC…