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Cosmic-ray-induced dissociation and reactions in warm interstellar ices

Author： Kalvāns J.  

Publisher： Edp Sciences

E-ISSN： 1432-0746|573|issue|A38-A38

ISSN： 0004-6361

Source： Astronomy & Astrophysics, Vol.573, Iss.issue, 2014-12, pp. : A38-A38

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

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Abstract

Context. Cosmic ray particles that hit interstellar grains in dark molecular cores may induce whole-grain heating. The high temperature of a CR-heated grain allows energy barriers for bulk diffusion and reactions to be overcome. Additionally, ice molecules are destroyed by direct cosmic-ray induced dissociation.

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