Spectropolarimetry in a Sunspot Penumbra at High Spatial Resolution

Gonzalez, N. Bello; Ounev, O.; Kneer, F.

doi:10.1007/1-4020-2962-4_11

Spectropolarimetry in a Sunspot Penumbra at High Spatial Resolution

N. Bello Gonzalez²⁵,
O. Ounev²⁵ &
F. Kneer²⁵

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Part of the book series: Astrophysics and Space Science Library ((ASSL,volume 320))

Abstract

We present results from polarimetric data on sunspot penumbrae obtained with the Vacuum Tower Telescope at the Observatorio del Teide, Tenerife, using the ‘Göttingen’ Fabry-Pérot Interferometer. Speckle image reconstruction has been performed giving us a spatial resolution of 0.6″. The observations were taken in the Fe II 6149.2 Å line which, given its particular Zeeman splitting, has no instrumental (Q, U) to V crosstalk and provides us measurements of I and V Stokes profiles to analyse velocities and magnetic fields in penumbrae.

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Authors and Affiliations

Universitäts-Sternwarte Göttingen, Geismarlandstrasse 11, D-37083, Göttingen, Germany
N. Bello Gonzalez, O. Ounev & F. Kneer

Authors

N. Bello Gonzalez
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O. Ounev
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F. Kneer
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Editors and Affiliations

Institute for Geophysics, Astrophysics and Meteorology, University of Graz, Austria
Arnold Hanslmeier & Astrid Veronig &
INAF-Trieste Astronomical Observatory, Italy
Mauro Messerotti

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Gonzalez, N.B., Ounev, O., Kneer, F. (2005). Spectropolarimetry in a Sunspot Penumbra at High Spatial Resolution. In: Hanslmeier, A., Veronig, A., Messerotti, M. (eds) Solar Magnetic Phenomena. Astrophysics and Space Science Library, vol 320. Springer, Dordrecht. https://doi.org/10.1007/1-4020-2962-4_11

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DOI: https://doi.org/10.1007/1-4020-2962-4_11
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-2961-5
Online ISBN: 978-1-4020-2962-2
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