CN and HCN in Dense Interstellar Clouds

  title={CN and HCN in Dense Interstellar Clouds},
  author={Gai I. Boger and Amiel Sternberg},
  journal={The Astrophysical Journal},
We present a theoretical investigation of CN and HCN molecule formation in dense interstellar clouds. We study the gas-phase CN and HCN production efficiencies from the outer photon-dominated regions (PDRs) into the opaque cosmic-ray-dominated cores. We calculate the equilibrium densities of CN and HCN and of the associated species C+, C, and CO, as functions of the far-ultraviolet (FUV) optical depth. We consider isothermal gas at 50 K, with hydrogen particle densities from 102 to 106 cm-3. We… Expand
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