A 3D radiative transfer framework. IX. Time dependence
Abstract
Context. Time-dependent, 3D radiation transfer calculations are important for the modeling of a variety of objects, from supernovae and novae to simulations of stellar variability and activity. Furthermore, time-dependent calculations can be used to obtain a 3D radiative equilibrium model structure via relaxation in time.
Aims: We extend our 3D radiative transfer framework to include direct time dependence of the radiation field; i.e., the ∂I/∂t terms are fully considered in the solution of radiative transfer problems.
Methods: We build on the framework that we have described in previous papers in this series and develop a subvoxel method for the ∂I/∂t terms.
Results: We test the implementation by comparing the 3D results to our well tested 1D time dependent radiative transfer code in spherical symmetry. A simple 3D test model is also presented.
Conclusions: The 3D time dependent radiative transfer method is now included in our 3D RT framework and in PHOENIX/3D.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- October 2012
- DOI:
- 10.1051/0004-6361/201118152
- arXiv:
- arXiv:1209.5788
- Bibcode:
- 2012A&A...546A..39J
- Keywords:
-
- radiative transfer;
- methods: numerical;
- supernovae: general;
- Astrophysics - Instrumentation and Methods for Astrophysics;
- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- A&