The evolution of active regions (AR) from their emergence through their long decay process
is of fundamental importance in solar physics. Since large-scale flux is generated by the …

We use machine learning methods to predict whether an active region (AR) which produces
flares will lead to a solar energetic particle (SEP) event using Space‐Weather Michelson …

Aims. We investigate the role of the accumulation of magnetic helicity and magnetic energy
in the generation of coronal mass ejections (CMEs) from emerging solar active regions …

In this article, we present a multiwavelength analysis of two X-class solar eruptive flares of
classes X2. 2 and X9. 3 that occurred in the sigmoidal active region NOAA 12673 on 2017 …

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 …

We present observations of a confined partial eruption of a filament on 2012 August 4, which
restores its initial shape within≈ 2 hr after eruption. From the Global Oscillation Network …

Solar coronal plasma composition is typically characterized by first ionization potential (FIP)
bias. Using spectra obtained by Hinode's EUV Imaging Spectrometer instrument, we present …

Solar active regions (ARs) provide the required magnetic energy and the topology
configuration for flares. Apart from conventional static magnetic parameters, the evolution of …

It is generally believed that solar activities are closely linked with magnetic fields on the solar
surface. To learn more about how solar flares are produced in relation to solar magnetic …

In this Letter, we examine the relationship between 3D magnetic free energy (MFE) and
flaring activity using 83 major solar flares (M-class and X-class) in nine solar active regions …