We study a filament eruption, two-ribbon flare, and coronal mass ejection (CME) that
occurred in NOAA Active Region 10898 on 6 July 2006. The filament was located South of a …

It is well accepted that a magnetic flux rope (MFR) is a critical component of many coronal
mass ejections (CMEs), yet how it evolves toward eruption remains unclear. Here we …

Sunspots are concentrations of magnetic field visible on the solar surface (photosphere). It
was considered implausible that solar flares, as resulted from magnetic reconnection in the …

Sunspots have been observed to undergo rotation about their umbral centre. This is typically
a slow rotation, with even the fastest sunspot rotations only reaching angular velocities of a …

We measure the rotation of a sunspot in solar active region NOAA 11158 (Solar Target
Identifier SOL2011-02-15) that was associated with an M-class flare. The flare occurred …

The ability to predict the occurrence of solar flares in advance is important to humankind due
to the potential damage they can cause to Earth's environment and infrastructure. It has …

Solar flares are one mechanism to release stored magnetic energy in the Sun's atmosphere.
This thesis aims to determine whether sunspot rotation can inject the energy required for …

The rare phenomenon of the coalescence of two rotating sunspots of the same magnetic
polarity during the emergence of the active region NOAA 11117 is investigated using data …

По материалам космической обсерватории SDO исследовано редкое явление слияния
двух вращающихся солнечных пятен одной полярности магнитного поля в процессе …

We report on the occurrence of vortexes in flow fields obtained from the evolution of the line-
of-sight component of the photospheric magnetic field in a region around the polarity …