Time-dependent chemistry in dense molecular clouds. IV - Interstellar grain surface reactions inferred from a matrix isolation study

Details Time-dependent chemistry in dense molecular clouds. IV - Interstellar grain surface reactions inferred from a matrix isolation study Time-dependent chemistry in dense molecular clouds. IV - Interstellar grain surface reactions inferred from a matrix isolation study

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...167..161g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 167, no. 1, Oct. 1986, p. 161-165.

Astronomy and Astrophysics

Astrophysics

50

Infrared Spectroscopy, Interstellar Matter, Molecular Clouds, Surface Reactions, Time Dependence, Absorption Spectra, Carbon Dioxide, Carbon Monoxide, Infrared Spectra

Scientific paper

A laboratory investigation of two potentially important grain surface reactions is presented. The reactions considered, CO + O yields CO2 and O2 + O yields O3, are studied with the use of matrix isolation techniques and Fourier transform-infrared spectroscopy. The method is described in a general way and can be applied to modeling various low temperature surface reactions of astrophysical relevance for the production of molecules in dense molecular clouds. It is shown that the reaction CO + O yields CO2 does not take place at low temperatures (10-30 K) because it possesses an activation energy barrier. On the other hand, the reaction O2 + 0 yields O3 proceeds readily. If CO2 is indeed present in interstellar grain mantles, it implies the occurrence of high energy processes, such as ultraviolet photolysis or cosmic-ray processing of these mantles, processes which can be simulated in the laboratory.

Affiliated with

Also associated with

No associations

Rating

Time-dependent chemistry in dense molecular clouds. IV - Interstellar grain surface reactions inferred from a matrix isolation study does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Time-dependent chemistry in dense molecular clouds. IV - Interstellar grain surface reactions inferred from a matrix isolation study, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Time-dependent chemistry in dense molecular clouds. IV - Interstellar grain surface reactions inferred from a matrix isolation study will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1735074