3D Radiative Transfer with PHOENIX

Details 3D Radiative Transfer with PHOENIX 3D Radiative Transfer with PHOENIX

2009-08-28

arxiv.org/abs/0908.4273v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

13 pages, 9 figures, to appear in Recent Directions in Astrophysical Quantitative Spectroscopy and Radiation Hydrodynamics, Ed

Scientific paper

Using the methods of general relativity Lindquist derived the radiative transfer equation that is correct to all orders in v/c. Mihalas developed a method of solution for the important case of monotonic velocity fields with spherically symmetry. We have developed the generalized atmosphere code PHOENIX, which in 1-D has used the framework of Mihalas to solve the radiative transfer equation (RTE) in 1-D moving flows. We describe our recent work including 3-D radiation transfer in PHOENIX and particularly including moving flows exactly using a novel affine method. We briefly discuss quantitative spectroscopy in supernovae.

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