Deuterium in Molecules of the Interstellar Medium |
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Authors: | Roueff E Gerin M |
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Institution: | (1) LUTH (FRE2462 of CNRS) and Observatoire de Paris, Place J. Janssen, 92190 Meudon, France;(2) LERMA and ENS (FRE2460 of CNRS), 24 rue Lhomond, 75231 Paris cedex 05, France |
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Abstract: | Deuterated molecules are detected both in interstellar translucent clouds and in cold dark clouds, as well as in star forming
regions. We review the recent observational studies of deuterated molecules ranging from the VUV to the millimeter wavelength
range. We outline some sources of uncertainties on the deuterium fractionation and on the subsequent derivation of the elemental
deuterium to hydrogen ratio. Steady state versus time dependent models are discussed and the role of initial conditions is
emphasized.
This revised version was published online in August 2006 with corrections to the Cover Date. |
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