Cosmic ray induced photons in dense interstellar clouds

Details Cosmic ray induced photons in dense interstellar clouds Cosmic ray induced photons in dense interstellar clouds

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992mnras.258..125c&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 258, no. 1, Sept. 1, 1992, p. 125-133.

Astronomy and Astrophysics

Astronomy

19

Cosmic Rays, Interstellar Gas, Molecular Clouds, Particle Collisions, Photons, Ultraviolet Radiation, Cosmic Dust, Energy Dissipation, Interstellar Extinction

Scientific paper

High-energy particles traversing a medium dissipate their energy through a succession of collisions. Part of the energy deposited by cosmic rays inside dense clouds can be transformed into a chemically significant ultraviolet flux by the impact excitation of molecular hydrogen. Detailed calculations of the collisional coefficients are described and the resulting production of ultraviolet radiation is computed, using various assumptions regarding the dust extinction properties.

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