Molybdenum in the open cluster stars
  Molybdenum abundances in the stars from 13 different open clusters were
determined. High-resolution stellar spectra were obtained using the VLT
telescope equipped with the UVES spectrograph on Cerro Paranal, Chile. The Mo
abundances were derived in the LTE approximation from the Mo I lines at 5506 A
and 5533 A. A comparative analysis of the behaviour of molybdenum in the
sampled stars of open clusters and Galactic disc show similar trends of
decreasing Mo abundances with increasing metallicities; such a behaviour
pattern suggests a common origin of the examined populations. On the other
hand, the scatter of Mo abundances in the open cluster stars is slightly
greater, 0.14 dex versus 0.11 dex. The results are discussed, considering the
abundance trends with the age of clusters and distances from the center of the
Galaxy.
