Shortly after the seminal paper “Self-Organized Criticality: An explanation of 1/f noise” by
Bak et al.(1987), the idea has been applied to solar physics, in “Avalanches and the …

This publication provides an overview of magnetic fields in the solar atmosphere with the
focus lying on the corona. The solar magnetic field couples the solar interior with the visible …

Abstract The Interface Region Imaging Spectrograph (IRIS) small explorer spacecraft
provides simultaneous spectra and images of the photosphere, chromosphere, transition …

Current analytical and numerical modeling suggest the existence of ubiquitous thin current
sheets in the corona that could explain the observed heating requirements. On the other …

Abstract The High-Resolution Coronal Imager (Hi-C) was flown on a NASA sounding rocket
on 11 July 2012. The goal of the Hi-C mission was to obtain high-resolution (≈ 0.3 …

We present spatially resolved EUV spectroscopic measurements of pervasive, faint Fe xix
592.2 Å line emission in an active region observed during the 2013 April 23 flight of the …

Context. Nanoflares are impulsive energy releases that occur due to magnetic reconnection
in the braided coronal magnetic field, which is a potential mechanism for heating the corona …

In this study, we analyze Atmospheric Imaging Assembly (AIA) and Hi-C images in order to
investigate absolute limits for the finest loop strands. We develop a model of the occurrence …

The third flight of the High-Resolution Coronal Imager (Hi-C 2.1) occurred on May 29, 2018;
the Sounding Rocket was launched from White Sands Missile Range in New Mexico. The …

Brightenings observed in solar extreme-ultraviolet images are generally interpreted as
signatures of micro-or nanoflares occurring in the transition region or at coronal …