Prologue: γ-Rays from Star-Forming Regions, a Historical Perspective

摘要

At last, we are in a position to scrutinize the acceleration, diffusion and propagation processes of cosmic rays in the vicinity of supernova shocks, the interaction of both high-energy (GeV-TeV) and low-energy (100MeV and below) cosmic rays with molecular clouds, generating high-energy gamma-rays and ionization processes respectively. This prologue provides a historical introduction to the studies of the interaction of cosmic-rays and star-forming regions.