  Evidence for the existence of low energy cosmic rays in the Galaxy comes from
the COMPTEL observations of gamma ray line emission from Orion, and also from
light element abundance data which seem to suggest a low energy rather than a
relativistic Galactic cosmic ray origin for most of the light elements. The
Orion and light isotope data are more consistent with a composition that is
depleted in protons and $\alpha$ particles than with one which is similar to
that of the Galactic cosmic rays. This low energy cosmic ray phenomenon appears
to be highly localized in space and time in the Galaxy, and is probably
associated with star formation regions similar to Orion.
