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Formal Solutions for Polarized Radiative Transfer. IV. Numerical Performances in Practical Problems

Informazioni aggiuntive

Tipo
Articolo pubblicato in rivista scientifica
Anno
2018
Lingua
Inglese
Abstract
The numerical computation of reliable and accurate Stokes profiles is of great relevance in solar physics. In the synthesis process, many actors play a relevant role: among them the formal solver, the discrete atmospheric model, and the spectral line. This paper tests the performances of different numerical schemes in the synthesis of polarized spectra for different spectral lines and atmospheric models. The hierarchy between formal solvers is enforced, stressing the peculiarities of high-order and low-order formal solvers. The density of grid points necessary for reaching a given accuracy requirement is quantitatively described for specific situations.
Rivista
The Astrophysical Journal
Volume
865
Numero
1
Pagina inizio
16
Parole chiave
irsol-refereed-scientific-papers