Polynomial Approximants for the Calculation of Polarization Profiles in the He I 10830 Å Multiplet

Bibcode
2005ApJS..160..312S
DOI
10.1086/431934
Socas-Navarro, H.; Trujillo Bueno, J.; Landi Degl'Innocenti, E.
Bibliographical reference

The Astrophysical Journal Supplement Series, Volume 160, Issue 1, pp. 312-317.

Advertised on:
9
2005
Number of authors
3
IAC number of authors
1
Citations
16
Refereed citations
12
Description
The He I multiplet at 10830 Å is formed in the incomplete Paschen-Back regime for typical conditions found in solar and stellar atmospheres. The positions and strengths of the various components that form the Zeeman structure of this multiplet in the Paschen-Back regime are approximated here by polynomials. The fitting errors are smaller than ~10-2 mÅ in the component positions and ~10-3 in the relative strengths. The approximant polynomials allow for a very fast implementation of the incomplete Paschen-Back regime in numerical codes for the synthesis and inversion of polarization profiles in this important multiplet.
Type
Refereed
Magnetic fields

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