Free Access

Fig. 2

image

Top: HMI magnetogram of the active region 11283 before the flare, taken at 22:00 UT, showing a leading bipole made of a small strong positive polarity and more extended negative polarity and a trailing faculae region of positive polarity. Bottom: map of the same field of view, obtained at the same time, of the vertical component of the current density, Jz, with the noise level removed. The leading strong bipole shown in the magnetogram corresponds to the location of the strongest current. The square indicates the field of view where the evolution of the currents and QSLs are investigated in more detail (see Fig. 3).

This figure is made of several images, please see below:

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.