A 3D radiative transfer framework
نویسندگان
چکیده
منابع مشابه
A 3D radiative transfer framework: II. line transfer problems
Context. Higher resolution telescopes as well as 3D numerical simulations will require the development of detailed 3D radiative transfer calculations. Building upon our previous work we extend our method to include both continuum and line transfer. Aims. We present a general method to calculate radiative transfer including scattering in the continuum as well as in lines in 3D static atmospheres...
متن کاملA 3D radiative transfer framework: V. Homologous Flows
Context. Observations and theoretical calculations have shown the importance of non-spherically symmetric structures in supernovae. Thus, the interpretation of observed supernova spectra requires the ability to solve the transfer equation in 3-D moving atmospheres. Aims. We present an implementation of the solution of the radiative transfer equation in 3-D homologously expanding atmospheres in ...
متن کاملA 3D radiative transfer framework: IV. spherical & cylindrical coordinate systems
Aims. We extend our framework for 3D radiative transfer calculations with a non-local operator splitting methods along (full) characteristics to spherical and cylindrical coordinate systems. These coordinate systems are better suited to a number of physical problems than Cartesian coordinates. Methods. The scattering problem for line transfer is solved via means of an operator splitting (OS) te...
متن کاملA 3D radiative transfer framework: III. periodic boundary conditions
Aims. We present a general method to solve radiative transfer problems including scattering in the continuum as well as in lines in 3D configurations with periodic boundary conditions. Methods. The scattering problem for line transfer is solved via means of an operator splitting (OS) technique. The formal solution is based on a full characteristics method. The approximate Λ operator is construc...
متن کاملRadiative Transfer in 3d
The high resolution and sensitivity provided by ALMA will reveal new small scale structures in many sources, e.g. star forming regions. Such inhomogeneities may not have been considered in the analysis of past observations but they will be essential to the understanding of future data. Radiative transfer methods are needed to interpret the observations and the presence of complicated source str...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2012
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201118152