The term “ultraviolet (UV) burst” is introduced to describe small, intense, transient
brightenings in ultraviolet images of solar active regions. We inventorize their properties and …

Magnetic reconnection has been intensively studied in fully ionized plasmas. However,
plasmas are often partially ionized in astrophysical environments. The interactions between …

Magnetic reconnection is a key mechanism involved in solar eruptions and is also a prime
possibility to heat the low corona to millions of degrees. Here, we present ultra-high …

Nanoflare models for heating the solar corona usually assume magnetic braiding and
reconnection as the source of the energy. However, recent observations at record spatial …

Solid evidence of magnetic reconnection is rarely reported within sunspots, the darkest
regions with the strongest magnetic fields and lowest temperatures in the solar atmosphere …

We investigate the spatial, temporal, and spectral properties of 10 microflares from AR12721
on 2018 September 9 and 10 observed in X-rays using the Nuclear Spectroscopic …

Context. Magnetic energy is required to heat the corona, the outer atmosphere of the Sun, to
millions of degrees. Aims. We study the nature of the magnetic energy source that is …

Context. The Extreme Ultraviolet Imager (EUI) on board the Solar Orbiter (SO) spacecraft
observed small extreme ultraviolet (EUV) bursts, termed campfires, that have been proposed …

Context. The solar chromosphere is heated to temperatures higher than predicted by
radiative equilibrium. This excess heating is greater in active regions where the magnetic …

In this paper, we propose that flux cancellation on small granular scales (≲ 1000 km)
ubiquitously drives reconnection at a multitude of sites in the low solar atmosphere …