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    Interstellar cloud evolution and the abundance of formaldehyde (1976)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Description: The time scale for essentially complete conversion of C(+) to CO in interstellar clouds can be comparable to, or greater than, dynamical time scales for evolution, therefore suggesting steady state time independent abundances to be inappropriate. The solutions for the time-dependent carbon chemistry in dense clouds, with density not less than 500/cu cm, indicate that significant amounts of neutral carbon will be present throughout a cloud's lifetime. These nonequilibrium values of C I can explain the relatively large abundances observed for formaldehyde, isotopes of carbon monoxide, and other trace molecules
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal; 210; Dec. 1
    Format: text
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