SIMBAD references

2016ApJ...826..107S - Astrophys. J., 826, 107-107 (2016/August-1)

Synthesis of formamide and related organic species in the interstellar medium via chemical dynamics simulations.


Abstract (from CDS):

We show, by means of direct dynamics simulations, how it is possible to define possible reactants and mechanisms leading to the formation of formamide in the interstellar medium. In particular, different ion-molecule reactions in the gas phase were considered: NH3OH+, NH2OH_{2}^+ , H2COH+, and NH4 + for the ions and NH2OH, H2CO, and NH3 for the partner neutrals. These calculations were combined with high level ab initio calculations to investigate possible further evolution of the products observed. In particular, for formamide, we propose that the NH2OH_{2}^+ + H2CO reaction can produce an isomer, NH2OCH_{2}^+ , that, after dissociative recombination, can produce neutral formamide, which was observed in space. The direct dynamics do not pre-impose any reaction pathways and in other reactions, we did not observe the formation of formamide or any possible precursor. On the other hand, we obtained other interesting reactions, like the formation of NH2CH_{2}^+ . Finally, some radiative association processes are proposed. All of the results obtained are discussed in light of the species observed in radioastronomy.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): astrobiology - astrochemistry - ISM: general - ISM: kinematics and dynamics - ISM: molecules - molecular processes

Simbad objects: 4

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2016ApJ...826..107S and select 'bookmark this link' or equivalent in the popup menu


© Université de Strasbourg/CNRS

    • Contact