Radiative Transfer in Clumpy and Fractal Media
| dc.creator | Varosi, Frank | |
| dc.creator | Dwek, Eli | |
| dc.date | 1999-05-21 | |
| dc.date.accessioned | 2026-07-07T02:31:41Z | |
| dc.date.available | 2026-07-07T02:31:41Z | |
| dc.description | A Monte Carlo model of radiative transfer in multi-phase dusty media is applied to the situation of stars and clumpy dust in a sphere or a disk. The distribution of escaping and absorbed photons are shown for various filling factors and densities. Analytical methods of approximating the escaping fraction of radiation, based on the Mega-Grains approach, are discussed. Comparison with the Monte Carlo results shows that the escape probability formulae provide a reasonable approximation of the escaping/absorbed fractions, for a wide range of parameters characterizing a clumpy dusty medium. A possibly more realistic model of the interstellar medium is one in which clouds have a self-similar hierarchical structure of denser and denser clumps within clumps, resulting in a fractal distribution of gas and dust. Monte Carlo simulations of radiative transfer in such multi-phase fractal media are compared with the two-phase clumpy case. | |
| dc.description | 10 pages, 3 figures (1 color figure), appeared in The Ultraviolet Universe at Low and High Redshift, proceedings of the conference held at University of Maryland in 1997 | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9905291 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9905291 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/14241 | |
| dc.subject | Astrophysics | |
| dc.title | Radiative Transfer in Clumpy and Fractal Media | |
| dc.type | text |