We studied the development conditions of sigmoid structure under the influence of the
magnetic non-potential characteristics of a rotating sunspot in the active region (AR) 12158 …

We explore the association of non-neutralized currents with solar flare occurrence in a
sizable sample of observations, aiming to show the potential of such currents in solar flare …

It has been observationally well established that the magnetic configurations most favorable
for producing energetic flaring events reside in δ-spots, a class of sunspots defined as …

Flare productivity varies among solar active regions (ARs). This study analyzed 20 ARs of
contrasting sunspot areas and flare productivities to understand the super flare productivity …

Abstract Using Solar Dynamics Observatory/Helioseismic and Magnetic Imager vector
magnetic field observations, we studied the relation between the degree of magnetic non …

In this work we provide an updated description of the Vertical-Current Approximation
Nonlinear Force-Free Field (VCA-NLFFF) code, which is designed to measure the evolution …

We present the study of three homologous solar eruptions from NOAA active region (AR)
11429 over four days. This large and complex AR is divided into two relatively simple …

We study the magnetic field evolution in AR 12371, related to its successive eruptive nature.
During the disk transit of seven days, the active region (AR) launched four sequential fast …

The physical conditions that determine whether or not solar active regions (ARs) produce
strong flares and coronal mass ejections (CMEs) are not yet well understood. Here, we …

Using time-sequence vector magnetic field observation from Helioseismic and Magnetic
Imager, we examined the connection of non-neutralized currents and the observed activity in …