| Issue |
EAS Publications Series
Volume 58, 2012
ECLA - European Conference on Laboratory Astrophysics
|
|
|---|---|---|
| Page(s) | 69 - 73 | |
| DOI | https://doi.org/10.1051/eas/1258010 | |
| Published online | 13 February 2013 | |
C. Stehlé, C. Joblin and L. d’Hendecourt (eds)
EAS Publications Series, 58 (2012) 69-73
Description of anomalous Zeeman patterns in stellar astrophysics
CEA, DAM, DIF, 91297
Arpajon,
France
The influence of a magnetic field on the broadening of spectral lines and transition arrays in complex spectra is investigated. The anomalous absorption or emission Zeeman pattern is a superposition of many profiles with different relative strengths, shifts, widths, asymmetries and sharpnesses. The σ and π profiles can be described statistically, using the moments of the Zeeman components. We present two statistical modellings: the first one provides a diagnostic of the magnetic field and the second one can be used to include the effect of a magnetic field on simulated atomic spectra in an approximate way.
© The Author(s) 2013