The increased sensitivity and high spectral resolution of millimeter telescopes allow the detection of an increasing number
of isotopically substituted molecules in the interstellar medium. We overview and revisit the basic isotopic fractionation reactions involving D, 13C and 15N at the light of recent experiments and ab-initio quantum chemistry studies [1, 2, 3].
As possible consequences, we will emphasize the pathways of deuteration in moderately warm environments [4] and the uncertainties in the 14N/15N ratio derivation of carbon and nitrogen containing molecules [3].
References
[1] Roueff E., Gerin, M., Lis D.C., Wootten A., MarcelinoN., Cernicharo J., Tercero B. 2013, JPCA 117, 9959
[2] Mladenovic M., Roueff E. 2014, A&A 566, A144
[3] Roueff E., Loison J.C., Hickson K.M. 2015, arXiv:1501.01141
[4] Favre C., Bergin E.A., Cleeves, L., Hersant F., Qi C., Aikawa Y. 2015, arXiv:1503.02659
| Type : | : | Invité |
| Thématiques | : | Chimie en phase gazeuse |
| Thématiques | : | Milieu interstellaire |
| PDF version | : |  PDF version |
- Présentation
