Photoabsorption and photodissociation of molecules important in the interstellar medium
Abstract
The photoabsorption, photodissociation, and fluorescence cross sections of interstellar molecules are measured at 90 to 250 nm. These quantitative optical data are needed for the understanding of the formation and destruction processes of molecules under the intense interstellar UV radiation field. Research covering the following topics is presented: (1) fluorescences from photoexcitation of CH4, CH3OH, and CH3SH; (2) NO gamma emission from photoexcitation of NO; (3) photoexcitation cross sections of aromatic molecules; (4) IR emission from UV excitation of HONO2; (5) IR emission from UV excitation of benzene and methyl-derivitives; and (6) IR emission from UV excitation of polycyclic aromatic hydrocarbon molecules.
- Publication:
-
California Univ., San Diego Report
- Pub Date:
- February 1991
- Bibcode:
- 1991ucsd.reptQ....L
- Keywords:
-
- Emission Spectra;
- Fluorescence;
- Infrared Spectra;
- Interstellar Matter;
- Molecular Excitation;
- Photoabsorption;
- Photodissociation;
- Ultraviolet Absorption;
- Benzene;
- Cyclic Hydrocarbons;
- Interstellar Chemistry;
- Interstellar Radiation;
- Methane;
- Methyl Alcohol;
- Nitric Oxide;
- Organic Sulfur Compounds;
- Ultraviolet Radiation;
- Astrophysics