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[ascl:1502.001] RH 1.5D: Polarized multi-level radiative transfer with partial frequency distribution

RH 1.5D performs Zeeman multi-level non-local thermodynamical equilibrium calculations with partial frequency redistribution for an arbitrary amount of chemical species. Derived from the RH code and written in C, it calculates spectra from 3D, 2D or 1D atmospheric models on a column-by-column basis (or 1.5D). It includes optimization features to speed up or improve convergence, which are particularly useful in dynamic models of chromospheres. While one should be aware of its limitations, the calculation of spectra using the 1.5D or column-by-column is a good approximation in many cases, and generally allows for faster convergence and more flexible methods of improving convergence. RH 1.5D scales well to at least tens of thousands of CPU cores.

Code site:
https://github.com/ITA-Solar/rh https://doi.org/10.5281/zenodo.592414
Described in:
http://adsabs.harvard.edu/abs/2015A%26A...574A...3P http://adsabs.harvard.edu/abs/2001ApJ...557..389U
Bibcode:
2015ascl.soft02001P

Views: 1225

ascl:1502.001
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