Abstract
view Abstract Citations (253) References (25) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Redistribution of Resonance Radiation. I. The Effect of Collisions Omont, A. ; Smith, E. W. ; Cooper, J. Abstract The techniques of modern line-broadening theory are used to investigate the scattering of polarized radiation in the rest frame of an atom undergoing collisions. The formulation explicitly includes both elastic and inelastic (quenching) collisions. When the lower state has zero width, a form for the redistribution function similar to that of Zanstra is obtained, but with the redistribution in the neighborhood of the resonance line being caused solely by elastic collisions. In the limit of no collisions, but with both levels of finite lifetime, the result of `veisskopf and Woolley is obtained. The effect of level-degeneracy is also explicitly included; in this case the results are a function of the polarization of the light and the different relaxation rates for the multipolar components of the atomic states. Publication: The Astrophysical Journal Pub Date: July 1972 DOI: 10.1086/151548 Bibcode: 1972ApJ...175..185O full text sources ADS |
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