We investigate the evolution of NOAA Active Region (AR) 11817 during 2013 August 10–12,
when it developed a complex field configuration and produced four confined, followed by …

We report two sympathetic solar eruptions including a partial and a full flux rope eruption in
a quadrupolar magnetic region where a large and a small filament resided above the middle …

Magnetic flux ropes are characterized by coherently twisted magnetic field lines, which are
ubiquitous in magnetized plasmas. As the core structure of various eruptive phenomena in …

Context. Solar active region (AR) 12673 in 2017 September produced the two largest flares
in Solar Cycle 24: the X9. 3 flare on September 6 and the X8. 2 flare on September 10. Aims …

We study an active-region dextral filament that was composed of two branches separated in
height by about 13 Mm, as inferred from three-dimensional reconstruction by combining …

Using multi-wavelength observations of SOHO/MDI, SOT–Hinode/blue-continuum (4504 Å),
G band (4305 Å), Ca ii H (3968 Å), and TRACE 171 Å, we present the observational …

Solar filaments exhibit a range of eruptive-like dynamic activity from the full, or partial,
eruption of the filament mass and surrounding magnetic structure, as a CME, to a fully …

We present a three-dimensional density model of coronal prominence cavities, and a
morphological fit that has been tightly constrained by a uniquely well-observed cavity …

Solar filament eruptions are often characterized by stepwise evolution due to the
involvement of multiple mechanisms, such as magnetohydrodynamic instabilities and …

In this paper, we study the onset process of a solar eruption on 2015 February 21, focusing
on its unambiguous precursor phase. With multiwavelength imaging observations from the …