Search for possibly evolutionary linked globular and open clusters
  Based on a large sample of 133 Galactic globular clusters we obtained a new
estimate of the frequency of globular-cluster impacts onto the Galactic plane,
which we found to be equal to three events per 1 Myr. Our computations
involving new kinematical data do not support the well-known hypothesis about
the possible origin of the open cluster Stephenson~2 as a result of the massive
globular cluster $\omega$ Cen crossing the Galactic disk. Our results also do
not support the well-known hypothesis that the globular cluster NGC6397 could
trigger the formation of the open cluster NGC6231. We found for the first time
six globular clusters, which could have triggered the formation of an open
cluster when crossing the Galactic plane. These are the globular clusters
NGC104, NGC2808, NGC6362, NGC6540, NGC6749, and NGC6752. For each of these
clusters we identify one or several open clusters, which were possibly born via
such scenario. In our opinion, of greatest interest are the pairs
NGC104-Ruprecht 129, and NGC6362-Pismis 11.
