Context. In a recent statistical study of sunspots in 79 active regions, the vertical magnetic
field component B ver averaged along the umbral boundary is found to be independent of …

The 'strength'of a sunspot depends on its magnetic field and umbral darkness, factors which
go together. The strongest field in an umbra is always found at the darkest position. We use …

We present a model for the total solar irradiance. The model takes the observed location,
timing, and area of emerging active regions as input and produces a time-evolving size …

Magnetic bright points (MBPs) are small-scale magnetic elements ubiquitous across the
solar disc, with the prevailing theory suggesting that they form due to the process of …

This paper presents the formation, evolution and decay of a coronal bright point via a
spectroscopic analysis of its transition region counterpart and the evolution of the underlying …

We have developed a computational software system to automate the process of identifying
solar active regions (ARs) and quantifying their physical properties based on high-resolution …

Using line-of-sight Michelson Doppler Imager (MDI) magnetograms of 89 active regions and
Solar Geophysical Data (SGD) flare reports, we explored, for the first time, the magnitude …

Aims. We aim to improve our picture of the low chromosphere in the quiet-Sun internetwork
by investigating the intensity, horizontal velocity, size and lifetime variations of small bright …

High-resolution photographs of the photospheric network taken in the Ca ii K 3933 Å line
and at λ4308 Å are analysed in order to study the variation, in latitude and over the sunspot …

We analyze simultaneous, or near‐simultaneous, coregistered, digital, photometric images
of solar photospheric intensity and line‐of‐sight magnetic field. Images were made with the …