Here we try to collect all important and relevant

which was produced by HELAS members.

A cutaway drawing of the Sun showing a particular mode of global acoustic oscillation (right). The blowup reveals horizontal flows 1000 km below a sunspot deduced from local helioseismology (the surface magnetic field is shown in red and the Earth gives the scale). The Sun’s hot and extended corona is visible in the background.

European Helio- and Asteroseismology Network