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| Paper: |
Modeling Star-Forming Regions using a 3D Molecular Transport Code |
| Volume: |
453, Advances in Computational Astrophysics: Methods, Tools, and Outcome |
| Page: |
33 |
| Authors: |
Loughnane, R. M.; Redman, M. P.; Keto, E. R. |
| Abstract: |
This paper presents the 3-dimensional non-LTE radiative transfer code, MOLLIE (MOLelcular LIne Explorer), for solving molecular
and atomic excitation and radiation transfer in a molecular gas and predicting emergent spectra. The code implementation makes use of the Accelerated Lambda Iteration (ALI) method of Rybicki & Hummer (1991) to solve the radiative transfer equation along rays passing through a spherical model cloud. When convergence between level populations, the radiation field, and the point separation has been obtained, the grid is ray-traced to produce images that can be readily compared to observations. The optimization technique, Fast Simulated Annealing (FSA), adopted by MOLLIE to increase the probability of arriving at a satisfactory output in a timely fashion, is briefly considered. |
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