Interstellar deuteroammonia

@article{Lis2008InterstellarD,
  title={Interstellar deuteroammonia},
  author={Dariusz C. Lis and M. Gerin and Evelyne Roueff and Thomas G. Phillips and Dieter R. Poelman},
  journal={Astrophysics and Space Science},
  year={2008},
  volume={313},
  pages={77-80}
}
Abstract Close to 30 deuterated molecules have now been detected in the ISM, including doubly-deuterated species D2H+, ND2H, D2CO, CHD2OH, D2S, and D2CS, as well as triply-deuterated ammonia and methanol. We review the current understanding of depletion and deuteration processes in cold, dense interstellar medium (ISM) and discuss the utility of deuteroammonia as a tracer of the physical conditions and kinematics of cold, dense gas.