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- Title
Returning magnetic flux in sunspot penumbrae.
- Authors
Cobo, B. Ruiz; Ramos, A. Asensio
- Abstract
Aims. We study the presence of reversed polarity magnetic flux in sunspot penumbra. Methods. We applied a new regularized method to deconvolve spectropolarimetric data observed with the spectropolarimeter SP onboard Hinode. The new regularization is based on a principal component decomposition of the Stokes profiles. The resulting Stokes profiles were inverted to infer the magnetic field vector using SIR. Results. We find, for the first time, reversed polarity fields at the border of many bright penumbral filaments in the whole penumbra.
- Subjects
POLARITY (Physics); MAGNETIC flux; SUNSPOTS; SPECTROPOLARIMETERS; STOKES equations
- Publication
Astronomy & Astrophysics / Astronomie et Astrophysique, 2013, Vol 549, p1
- ISSN
0004-6361
- Publication type
Article
- DOI
10.1051/0004-6361/201220373