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Chromospheric magnetic fields of an active region filament

Published online by Cambridge University Press:  27 June 2012

M. Faurobert ,
C. Fang ,
T. Corbard ,
Z. Xu ,
S. Solanki  and
A. Lagg
Z. Xu
Affiliation:
Yunnan Astronomical Observatory, CAS, Kunming, 650011 Yunnan, China
S. Solanki
Affiliation:
Max-Planck-Institut für Sonnensystemforschung, Max-Planck-Strasse 2, 37191 Katlenburg-Lindau, Germany
A. Lagg
Affiliation:
Max-Planck-Institut für Sonnensystemforschung, Max-Planck-Strasse 2, 37191 Katlenburg-Lindau, Germany
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Abstract

Vector magnetic fields of an active region filament are co-spatially and co-temporally mapped in photosphere and upper chromosphere, by using spectro-polarimetric observations made by Tenerife Infrared Polarimeter (TIP II) at the German Vacuum Tower Telescope (VTT). A Zeeman-based ME inversion is performed on the full Stokes vectors of both the photospheric Si I 1082.7 nm and the chromospheric He I 1083.0 nm lines. We found that the strong magnetic fields, with the field strength of 600 − 800 G in the He I line formation height, are not uncommon among AR filaments. But such strong magnetic field is not always found in AR filaments.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 55: 4th French-Chinese Meeting on Solar Physics - Understanding Solar Activity: Advances and Challenges , 2012 , pp. 163 - 168
Copyright
© EAS, EDP Sciences 2012

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References

Bommier, V., Landi Degl’innocenti, E., & Leroy, J.L., 1994, Solar Phys., 154, 231 CrossRef
Canou, A., & Amari, T., 2010, ApJ, 715, 1566 CrossRef
Kuckein, C., Centeno, R., Martínez Pillet, V., et al., 2009, A&A, 501, 1113
Lites, B.W., 2005, ApJ, 622, 1275 CrossRef
Lagg, A., Woch, J., Krupp, N., & Solanki, S.K., 2004, A&A, 414, 1109
Landi Degl’innocenti, E., 1982, Solar Phys., 79, 291 CrossRef
López Ariste, A., Aulanier, G., Schmieder, B., & Sainz Dalda, A., 2006, A&A, 456, 725
López Ariste, A., & Casini, R., 2002, ApJ, 575, 529 CrossRef
Rust, David M., 1967, ApJ, 150, 313 CrossRef
Sasso, C., Lagg, A., & Solanki, S., 2007, in ASP Conf. Ser. 368, The physics of Chromosphere Plasmas, ed. P. Heinzel, I. Dorotovic˘ & R. Rutten (San Francisco, CA : ASP), 467