Three-dimensional Continuum Radiative Transfer Images of a Molecular Cloud Core Evolution
Abstract
We analyze a three-dimensional smoothed particle hydrodynamics simulation of an evolving and later collapsing pre-stellar core. Using a three-dimensional continuum radiative transfer program, we generate images at 7 micron, 15 micron, 175 micron, and 1.3 mm for different evolutionary times and viewing angles. We discuss the observability of the properties of pre-stellar cores for the different wavelengths. For examples of non-symmetric fragments, it is shown that, misleadingly, the density profiles derived from a one-dimensional analysis of the corresponding images are consistent with one-dimensional core evolution models. We conclude that one-dimensional modeling based on column density interpretation of images does not produce reliable structural information and that multidimensional modeling is required.
Cite
@article{arxiv.astro-ph/0410298,
title = {Three-dimensional Continuum Radiative Transfer Images of a Molecular Cloud Core Evolution},
author = {J. Steinacker and B. Lang and A. Burkert and A. Bacmann and Th. Henning},
journal= {arXiv preprint arXiv:astro-ph/0410298},
year = {2009}
}
Comments
accepted by ApJL, 4 pages, 4 figures