Tailed Radio Galaxies as Probes of Cluster Physics in the Square
  Kilometre Array Era
  In recent years, the use of tailed radio galaxies as environmental probes has
gained momentum as a method for galaxy cluster detection, examining the
dynamics of individual clusters, measuring the density and velocity flows in
the intra-cluster medium, and for probing cluster magnetic fields. To date
instrumental limitations in terms of resolution and sensitivity have confined
this research to the local (z < 0.7) Universe. The advent of SKA-1 surveys
however will allow detection of well over 1 million tailed radio galaxies and
their associated galaxy clusters out to redshifts of 2 or more. This is in fact
ten times more than the current number of known clusters in the Universe. Such
a substantial sample of tailed galaxies will provide an invaluable tool not
only for detecting clusters, but also for characterizing their intra-cluster
medium, magnetic fields and dynamical state as a function of cosmic time. In
this paper we present an analysis of the usability of tailed radio galaxies as
tracers of dense environments extrapolated from existing deep radio surveys
such the Extended Chandra Deep Field-South.
