Radiation Transport in a Medium with a Magnetic Field.
Abstract
The Monte Carlo method has been applied to photon transport in volume simulating quiescent prominence. This volume is taken to be finite in two dimensions, homogeneous, and permeated by a uniform magnetic field. The lower surface of the model prominence is illuminated by a continuum of unpolarized photons which are assumed to undergo pure scattering. There is no thermal generation of photons within the atmosphere for the present model. The model atom assumed produces a normal Zeeman triplet. In this particular case, application can be made to the resonance line 4227A of Cai. By the Monte Carlo method the history of the photon states of polarization ~1,j2, and ir are traced through the multiple scattering process, and emergent line profiles in flux and intensity are constructed. The absorption line as seen looking at the top and the emission lines from the side and bottom of the prominence will be discussed showing the relation between broadening, polarization, and total intensity or flux versus magnetic field, density and dimensions of the prominence.
- Publication:
-
The Astronomical Journal Supplement
- Pub Date:
- 1968
- Bibcode:
- 1968AJS....73S..63H