Radiative Transfer Problem in Dusty Galaxies: Ray-Tracing Approach
A new code for evaluation of light absorption and scattering by interstellar dust grains is presented. The radiative transfer problem is solved using ray-tracing algorithm in a self-consistent and highly efficient way. The code demonstrates performance and accuracy similar or better than that of previously published results, achieved using Monte-Carlo methods, with accuracy better than ∼ 3% for most cases. The intended application of the code is spectrophotometric modelling of disk galaxies, however, it can be easily adapted to other cases that require a detailed spatial evaluation of scattering, such as circumstellar disks and shells using both point and distributed light sources.
Unable to display preview. Download preview PDF.
- [DT02]Dullemond, C., Turolla, R.: An efficient algorithm for two-dimensional radiative transfer in axisymmetric circumstellar envelopes and disks. A&A, 360, 1187–1202 (2000) Google Scholar
- [GHW99]Górski, K., Hivon, E., Wandelt, B.: Analysis Issues for Large CMB Data Sets. In: Banday, A., Sheth, R., Da Costa, L. (eds.) Proceedings of the MPA/ESO Cosmology Conference “Evolution of Large-Scale Structure”. PrintPartners Ipskamp, NL, 37–42 (1999) Google Scholar
- [SV02]Semionov, D., Vansevičius, V.: Radiative transfer problem in dusty galaxies: ray-tracing vs. Monte-Carlo. Balt. Astron. 11, 537–545 (2002) Google Scholar
- [SSV03]Semionov, D., Stonkutė, R., Vansevičius, V.: Modelling the radial color profile of M31. Balt. Astron. 12, 633–636 (2003) Google Scholar
- [TVA03]Takagi, T., Vansevičius, V., Arimoto, N.: Spectral Energy Distributions of Dusty Galaxies. Publications of the Astronomical Society of Japan, 55, 385–407 (2003) Google Scholar