Photodissociation rates of OH, OD, and CN by the interstellar radiation field

Journal Article · Mon Apr 01 04:00:00 EST 1985 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/163057· OSTI ID:5562630

Nee, J B; Lee, L C

The photoabsorption cross sections for OH, OD, and CN in the vacuum ultraviolet region are measured. The cross sections for the hydroxyl radicals are of the order of 10/sup -17/ cm/sup -2/, but the photoabsorption for CN is so low that only an upper limit of 2 x 10/sup -18/ is obtained. The molecular photodissociative processes are discussed. The photodissociation cross sections are inferred from the photoabsorption cross sections. On the basis of the measured data, the photodissociation rates by the interstellar radiation field are computed and discussed.

• Research Organization: Department of Electrical and Computer Engineering, San Diego State University
• OSTI ID: 5562630
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 291:1; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
CROSS SECTIONS
CYANOGEN
DEUTERIUM COMPOUNDS
DISSOCIATION
HYDROGEN COMPOUNDS
HYDROXYL RADICALS
INTERSTELLAR GRAINS
NUCLEAR REACTIONS
PARTICLES
PHOTONUCLEAR REACTIONS
RADICALS
SPECTRA
ULTRAVIOLET SPECTRA