The dusty MOCASSIN: fully self-consistent 3D photoionisation and dust radiative transfer models

Details The dusty MOCASSIN: fully self-consistent 3D photoionisation and dust radiative transfer models The dusty MOCASSIN: fully self-consistent 3D photoionisation and dust radiative transfer models

2005-07-02

arxiv.org/abs/astro-ph/0507050v1

Mon.Not.Roy.Astron.Soc.362:1038-1046,2005

Astronomy and Astrophysics

Astrophysics

9 pages, 3 figures

Scientific paper

10.1111/j.1365-2966.2005.09381.x

We present the first 3D Monte Carlo (MC) photoionisation code to include a fully self-consistent treatment of dust radiative transfer (RT) within a photoionised region. This is the latest development (Version 2.0) of the gas-only photoionisation code MOCASSIN (Ercolano et al., 2003a), and employs a stochastic approach to the transport of radiation, allowing both the primary and secondary components of the radiation field to be treated self-consistently, whilst accounting for the scattering of radiation by dust grains mixed with the gas, as well as the absorption and emission of radiation by both the gas and the dust components. A set of rigorous benchmark tests have been carried out for dust-only spherically symmetric geometries and 2D disk configurations. MOCASSIN's results are found to be in agreement with those obtained by well established dust-only RT codes that employ various approaches to the solution of the RT problem. A model of the dust and of the photoionised gas components of the planetary nebula (PN) NGC 3918 is also presented as a means of testing the correct functioning of the RT procedures in a case where both gas and dust opacities are present. The two components are coupled via the heating of dust grains by the absorption of both UV continuum photons and resonance line photons emitted by the gas. The MOCASSIN results show agreement with those of a 1D dust and gas model of this nebula published previously, showing the reliability of the new code, which can be applied to a variety of astrophysical environments.

Affiliated with

Also associated with

No associations

Rating

The dusty MOCASSIN: fully self-consistent 3D photoionisation and dust radiative transfer models does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The dusty MOCASSIN: fully self-consistent 3D photoionisation and dust radiative transfer models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The dusty MOCASSIN: fully self-consistent 3D photoionisation and dust radiative transfer models will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-497073