Quiet Sun magnetism and Alfven waves as observed with Hinode
The magnetic landscape of the polar region (Tsuneta et al, 2008) is characterized by vertical kilogauss patches with super-equipartition field strength, a...
For a long time radiative MHD simulations of entire sunspots from first principles were out of reach due to insufficient computing resources. Over the past 4...
Response of the solar atmosphere to the photospheric plasma motion
The dynamics of the solar atmosphere is largely controlled by its magnetic coupling to the photosphere of the Sun. Since the solar magnetic field is complex...
The solar abundance of chemical elements play an important role in addressing such important issues as the formation, structure, and evolution of the Sun and...
Solar-cycle and Latitude Variations in the Internetwork Magnetism
The importance of the quiet-Sun magnetism is that it is always there to a greater or lesser extent, being a constant provider of energy, independently of the...
This contribution is a report on a test campaign carried out by the IAC, in collaboration with Construcciones Aeronauticas, S.A. (CASA) as a main contrac tor...
Spectropolarimetry of the Solar Mg II h and k Lines
We report on spectropolarimetric observations across the Mg II h and k lines at 2800 Å made by the Ultraviolet Spectrometer and Polarimeter on board the Solar...
Statistical properties of magnetic fields in intranetwork
We report a study of the quiet sun's magnetic field based on high-resolution infrared spectropolarimetric observations (TIP/VTT). We find that in almost 50% of...
Testing new ideas of sunspot formation: the negative effective magnetic pressure instability
The formation of active regions and its most visible outcome-sunspots-are still a matter of research. Magnetic flux tubes theory tends to explain the formation...