The far-infrared spectrum of the OH radical

Abstract

view Abstract Citations (31) References (7) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The far-infrared spectrum of the OH radical Brown, J. M. ; Schubert, J. E. ; Evenson, K. M. ; Radford, H. E. Abstract It is thought likely that the study of spectral lines in the far-infrared might provide at least as much information about the physics and chemistry of the interstellar environment as radioastronomy. However, by comparison with the microwave region, the far-infrared is largely unexplored. There is a pressing need for good laboratory data to aid searches and assignments of spectra from the interstellar clouds and nebulae. Brown et al. (1981) have conducted a study of the laser magnetic resonance (LMR) spectrum of the OH radical in its ground state at far-infrared wavelengths. The present investigation is concerned with the computation of the frequencies of individual hyperfine transitions involving all rotational levels up to J = 4 1/2. The results of the calculation are presented in a table. The results are summarized in a diagram which shows the low-lying energy levels of OH. The frequencies of transitions between levels studied directly in the LMR spectrum are quite reliable. Publication: The Astrophysical Journal Pub Date: July 1982 DOI: 10.1086/160136 Bibcode: 1982ApJ...258..899B Keywords: Far Infrared Radiation; Hydroxyl Radicals; Infrared Spectra; Interstellar Chemistry; Line Spectra; Molecular Spectra; Energy Spectra; Interstellar Matter; Magnetic Resonance; Nebulae; Astrophysics full text sources ADS |