Author: Oskar SteinerFrom numerical simulations of highest spatial resolution and high resolution observations, we may guess the science questions to be tackled with future large solar telescopes. Selected examples are discussed, trying to determine t ... more
Author: Oskar SteinerAn important discovery achieved with Hinode’s Solar Optical Telescope/Spectro-Polarimeter (SOT/SP) was that in the mean, the magnetic field over wide areas of the quiet Sun photosphere is predominantly horizontal, i.e., parallel ... more
Author: Daniel ReeseOne of the greatest challenges in interpreting the pulsations of rapidly rotating stars is mode identification, i.e. correctly matching theoretical modes to observed pulsation frequencies. Indeed, the latest observations as well ... more
Author: Morten FranzIn this contribution, we investigate to which degree strayligh influences results from the GREGOR Infrared Spectrograph. To this end, we use the synthesis module of the SIR code to perform radiative transfer calculations in a 3D-M ... more
Author: Sung-Hong ParkWe investigated statistical characteristics of magnetic helicity injected per unit time through the active region photosphere using vector magnetic field data from the Helioseismic and Magnetic Imager (HMI) onboard the Solar Dynam ... more
Author: Markus RothThese are the slides given on October 16, 2017 at the Splinter Meeting on Synoptic Observations.
This summarizes the results of the Work Package (WP) 80 of the EU FP7 activity Solarnet.
Author: Rudolf KommThe active region 10486 that produced the Halloween flares in 2003 initiated our interest in the kinetic helicity of subsurface flows associated with active regions. This lead to the realization that the helicity of subsurface fl ... more
Author: Manolis GeorgoulisThe 1980s and 1990s saw seminal works on the role of magnetic helicity in the magnetized solar atmosphere. Thanks to helicity, our understanding of the quiescent and eruptive solar magnetism has progressed substantially since then ... more
Author: Adur Pastor YabarThe magnetism at the poles is similar to that of the quiet Sun in the sense that no active regions are present there. However, the polar quiet Sun is somewhat different from that at the activity belt as it has a global polarity th ... more