Chemistry in Space pp 427-431 | Cite as
Cosmic-Ray-Induced Photons: Are They Really Important?
Abstract
In this paper we analyze the production and transfer of U.V. photons inside the core of a spherical core-halo molecular cloud, using various assumptions on extinction and scattering dust properties. In our computations we take into account the contributions to the excitation of the B 1 Σ u + ,C 1 П u states of molecular hydrogen by both primary protons and secondary electrons. The computations were performed assuming that the core has a uniform gas density of 104 cm-3 and a visual optical depth (edge to edge) of 10. Vie found the intensity of cosmic- ray- induced UV photons inside the core to be of a higher order of magnitude than that produced by the interstellar radiation field. Finally, we noted the effects of this UV radiation field on the evolution of grain mantles.
Keywords
Dense Cloud Extinction Curve Primary Proton Excitation Coefficient Eject Electron EnergyPreview
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