EDP Sciences
Open Access
Volume 598, February 2017
Article Number A73
Number of page(s) 6
Section The Sun
DOI https://doi.org/10.1051/0004-6361/201628618
Published online 02 February 2017

© ESO, 2017

Licence Creative Commons
Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.