Abstract The chemistry in a supersonic plasma source flow was studied as a laboratory model for interstellar chemical evolution. It is important to match the similarity parameters for cosmic and laboratory conditions, which connect the temporal and spatial scales of the two cases. The apparatus simulated the conditions in a molecular cloud with respect to molecular-ionic reaction fraction, temperature, and non-equilibrium kinetics. The plasma flow was found to be cold enough, by the radical expansion, to produce polyatomic molecules. From the simple atomic plasma as reactant, cyanopolyyne and unsaturated hydrocarbons were synthesized in the present experiment. These molecules are also inherent in molecular clouds. The reaction mechanism is discussed.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A laboratory model for interstellar chemical evolution


    Contributors:
    Ishikawa, Y. (author) / Kuriki, K. (author)

    Published in:

    Publication date :

    1983-01-01


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Laboratory simulation on interstellar chemical evolution

    Ishikawa, Y. / Kuriki, K. | Online Contents | 1982



    Simulation of interstellar chemical evolution in a low temperature plasma

    Ishikawa, Yoji / Kuriki, Kyoichi | Online Contents | 1984



    Complex Organics in Laboratory Simulations of Interstellar/Cometary Ices

    Bernstein, M. P. / Allamandola, L. J. / Sandford, S. A. et al. | British Library Conference Proceedings | 1997