Abstract
The radiation fluxes inside interstellar gas-dust molecular clouds as stars of classes A, F, and G pass through the clouds are calculated. It is shown that radiation in the range 912<λ<2067 A penetrates deeply enough to produce an irradiation dose over the time these stars cross the clouds that is high enough to initiate chemical reactions in the ice mantles of dust particles. The possible use of these results for astrophysical interpretation of published data from laboratory experiments on the irradiation of H2O:CH3OH:NH3:CO ice mixtures is discussed. The complex carbon-containing compounds formed during this radiation-induced chemical transformation may play an important role in the prebiological evolution of the dust component of molecular clouds.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
