Events

Over the past decades, extensive observations of various solar features revealed that the Sun preferentially exhibits left-handed helical structures in its northern hemisphere and their opposite counterparts in the southern hemisphere, independent of the solar cycle. This is so-called the hemispheric sign preference (HSP) of helicity in the Sun. In this talk, I will present a statistical study of magnetic helicity flux across the photospheric surfaces of solar active regions, in the context of the HSP and its relation to long-term flaring activity over the solar cycle 24.

Watch the recording.