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Description of anomalous Zeeman patterns in stellar astrophysics

Published online by Cambridge University Press:  13 February 2013

J.-C. Pain  and
F. Gilleron
J.-C. Pain
Affiliation:
CEA, DAM, DIF, 91297 Arpajon, France
F. Gilleron
Affiliation:
CEA, DAM, DIF, 91297 Arpajon, France

Abstract

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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.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 58: ECLA - European Conference on Laboratory Astrophysics , 2012 , pp. 69 - 73
Copyright
© The Author(s) 2013

References

Références

Alecian, G., & Stift, M.J., 2002, A&A, 387 , 271
Zeeman, P., 1897, ApJ, 5 , 332 CrossRef
Donati, J.-F., & Cameron, A.C., 1997, Mon. Notes R. Astron. Soc., 291 , 1 CrossRef
Godbert-Mouret, L., et al., 2009, High Energy Density Phys., 5 , 162 CrossRef
Mathys, G., & Stenflo, J.O., 1987, A&A, 171 , 368 PubMed
Kendall, M.G., & Stuart, A., 1969, Advanced Theory of Statistics (Hafner, New York)
Pain, J.-Ch., et al., 2009, High Energy Density Phys., 5 , 294 CrossRef
Landi Degl’Innocenti, E., 1985, Solar Phys., 99 , 1 CrossRef
Bauche, J., & Oreg, J., 1988, J. Phys. Colloques C1, 49 , 263
Gilleron, F., & Pain, J.-C., 2009, High Energy Density Phys., 5 , 320 CrossRef