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DUSTY: Radiation transport in a dusty environment
Zeljko Ivezic1,2,
Maia Nenkova2 &
Moshe Elitzur2
1
Princeton University
2
University of Kentucky
Abstract:
DUSTY solves the problem of radiation transport in a dusty
environment. The code can handle both spherical and planar
geometries. The user specifies the properties of the radiation
source and dusty region, and the code calculates the dust
temperature distribution and the radiation field in it. The
solution method is based on a self-consistent equation for
the radiative energy density, including dust scattering, absorption
and emission, and does not introduce any approximations. The
solution is exact to within the specified numerical accuracy.
DUSTY has built in optical properties for the most common
types of astronomical dust and comes with a library for many
other grains. It supports various analytical forms for the density
distribution, and can perform a full dynamical calculation for
radiatively driven winds around AGB stars. The spectral energy
distribution of the source can be specified analytically as either
Planckian or broken power-law. In addition, arbitrary dust optical
properties, density distributions and external radiation can be
entered in user supplied files. Furthermore, the wavelength grid
can be modified to accommodate spectral features. A single
DUSTY run can process an unlimited number of models, with
each input set producing a run of optical depths, as specified.
The user controls the detail level of the output, which can include
both spectral and imaging properties as well as other quantities of
interest.
Subject headings: accretion disks, dust, radiative transfer, stars: circumstellar matter, stars: pre-main-sequence
Latest Version: 1999 October 26
Archived: 1999 November 1
Copyright: 1996-1999 by Moshe Elitzur
Papers: representative:
Miroshnichenko, A., Ivezik, Z., Vinkovic, D., & Elitzur, M., 1999ApJ...520L.115M
Languages: Fortran 77
External Explanatory Pages:
http://www.pa.uky.edu/~moshe/dusty/
Source Code:
dusty.tar.gz