Interstellar triply deuterated ammonia

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dc.creatorvan der Tak, Floris F. S.
dc.creatorLis, Dariusz C.
dc.creatorGerin, Maryvonne
dc.creatorRoueff, Evelyne
dc.creatorSchilke, Peter
dc.creatorPhillips, Tom G.
dc.date2002-12-13
dc.date.accessioned2026-07-07T02:06:52Z
dc.date.available2026-07-07T02:06:52Z
dc.descriptionResearch on interstellar ND3 is reviewed and updated from the discovery papers. Results from observations of a dozen sources at centimeter and submillimeter wavelengths are presented. The two data sets are consistent, but do not constrain the excitation conditions in the ND3-emitting gas. The column density ratios of NH3:NH2D, NH2D:ND2H and ND2H:ND3, observed in similar sized beams, are ~10, and present a challenge for both the gas-phase and the grain-surface chemistry scenarios of deuterium fractionation. The role of shocks and of CO depletion in deuterium chemistry is discussed.
dc.descriptionFour pages, one colour figure. to appear in: Chemistry as a diagnostic of star formation, eds. C.L. Curry & M. Fich (NRC Press)
dc.identifierhttps://arxiv.org/abs/astro-ph/0212324
dc.identifierhttp://arxiv.org/abs/astro-ph/0212324
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/5511
dc.subjectAstrophysics
dc.titleInterstellar triply deuterated ammonia
dc.typetext

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