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arXiv · 1101.3551

Are solar chromospheric fibrils tracing the magnetic field?

J. de la Cruz Rodríguez·H. Socas-Navarro
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Abstract

Fibrils are thin elongated features visible in the solar chromosphere in and around magnetized regions. Because of their visual appearance, they have been traditionally considered a tracer of the magnetic field lines. For the first time, we challenge that notion, by comparing their orientation to that of the magnetic field, obtained via high-resolution spectropolarimetric observations of Ca ii lines. The short answer to the question posed in the title is that mostly yes, but not always.

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J. de la Cruz Rodríguez, H. Socas-Navarro. 2011-01-18. Are solar chromospheric fibrils tracing the magnetic field?. https://doi.org/10.1051/0004-6361/201016018

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