Aspects of frequency redistribution for noncoherent scattering in a turbulent medium.
Abstract
The scattering of line photons in a turbulent medium is reexamined. We take into account the fact that a photon absorbed in a turbulent element having some velocity will be reemitted by the same element and keeps in that way a certain 'memory' of its absorption. Adding the contributions of all turbulent elements at a given point, we construct new redistribution functions describing this correlation. They give the probability that a photon with frequency x in the direction n is absorbed and reemitted at frequency x' in the direction n'. A preliminary discussion of the problem is given in an astrophysical context.
 Publication:

Journal of Quantitative Spectroscopy and Radiative Transfer
 Pub Date:
 October 1975
 DOI:
 10.1016/00224073(75)901405
 Bibcode:
 1975JQSRT..15..979M
 Keywords:

 Electromagnetic Absorption;
 Frequency Distribution;
 Incoherent Scattering;
 Light Emission;
 Stellar Atmospheres;
 Turbulence Effects;
 Bubbles;
 Distribution Functions;
 Doppler Effect;
 Formulations;
 Integral Equations;
 Normal Density Functions;
 Photons;
 Spectral Line Width;
 Velocity Distribution;
 Astrophysics