EDP Sciences
Free access
Issue
A&A
Volume 379, Number 2, November IV 2001
Page(s) 690 - 696
Section Physical and chemical processes
DOI http://dx.doi.org/10.1051/0004-6361:20011287


A&A 379, 690-696 (2001)
DOI: 10.1051/0004-6361:20011287

Inverse raytracing based on Monte-Carlo radiative transfer simulations

S. Wolf

Thüringer Landessternwarte Tautenburg, Sternwarte 5, 07778 Tautenburg, Germany

(Received 4 November 1999 / Accepted 6 September 2001 )

Abstract
A method for the detailed investigation of polarization maps and images obtained from high-resolution observations is described in this paper. It has been developed for the analysis of the environment of young stellar objects (YSO), ultra-compact HII regions (UCHII), and the optically thin light scattering region of active galactic nuclei (AGN). The method is based on a 3D Monte-Carlo radiative transfer (RT) code. The main principle of this method lies in the detailed investigation of the paths of test-photons in the considered medium. To demonstrate the efficiency and limit of this method, it is applied to a simple YSO configuration consisting of the central star, an optically thick disk, and an optically thin envelope.


Key words: radiative transfer -- scattering -- polarization -- circumstellar matter -- methods: data analysis -- methods: numerical




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