The first comprehensive monograph on this active and productive field of research investigates solar-type activity amongst the large spectrum of low- and middle

IAU S258 discusses the problem of estimating ages of stars and stellar populations, a difficult challenge in astrophysics.

The origin of stars is one of the principle mysteries of nature. During the last two decades advances in technology have enabled more progress to be made in the

IAU Colloquium No. 71 had its immediate origins in a small gathering of people interested. in the optical and UV study of flare stars which took place during th

This book represents the Proceedings of the NATO Advanced Study Insti tute on Formation and Evolution of Low Mass Stars held from 21 September to 2 October 1987