On the Alignment of Galaxies in Clusters
  We explore the distribution of position angles (PA) of galaxies in clusters.
We selected for study the isolated clusters, since the distribution of the
galaxy orientation in clusters with close neighbors could be altered by
gravitational influence of the latter. We assume that galaxies are aligned, if
their number at one $90^o$ position angle interval is more than twice higher
than at the other $90^o$ interval. We study the galaxy PA distribution at the
outer regions of clusters with smaller space density, where the probability of
the PA variation in the result of interactions between galaxies is smaller than
at the dense central regions. We found that the alignment of galaxies is more
often observed in poor clusters and concluded that originally galaxies were
aligned, but in the result of accretion in time of field galaxies with
arbitrary orientations and also due to the mutual interactions the relative
number of aligned galaxies decreases.
