On the validity of the 630 nm Fe I lines for magnetometry of the internetwork quiet Sun

Bibcode
2006A&A...456.1159M
DOI
10.1051/0004-6361:20065008
Martínez González, M. J.; Collados, M.; Ruiz Cobo, B.
Bibliographical reference

Astronomy and Astrophysics, Volume 456, Issue 3, September IV 2006, pp.1159-1164

Advertised on:
9
2006
Journal
Astronomy and Astrophysics
Number of authors
3
IAC number of authors
3
Citations
78
Refereed citations
60
Description
Aims.The purpose of this work is to analyze the reliability of the magnetic field strengths inferred from the 630 nm pair of Fe i lines in internetwork quiet Sun regions. Methods: .Some numerical experiments have been performed that demonstrate the inability of these lines to recover the magnetic field strength in such low flux solar regions. Results: .It is shown how different model atmospheres, with magnetic field strengths ranging from a few hundred Gauss to kiloGauss, give rise to Stokes profiles that cannot be distinguished. The reasons for this degeneracy are discussed.
Type
Refereed
Magnetic fields

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