The Extended Spatial Distribution of Globular Clusters in the Core of
  the Fornax Cluster
  We report the discovery of a complex extended density enhancement in the
Globular Clusters (GCs) in the central $\sim 0.5(^{\circ})^2$ ($\sim 0.06$
Mpc$^2$) of the Fornax cluster, corresponding to $\sim 50\%$ of the area within
1 core radius. This overdensity connects the GC system of NGC1399 to most of
those of neighboring galaxies within $\sim 0.6^{\circ}$ ($\sim 210$ kpc) along
the W-E direction. The asymmetric density structure suggests that the galaxies
in the core of the Fornax cluster experienced a lively history of interactions
that have left a clear imprint on the spatial distribution of GCs. The extended
central dominant structure is more prominent in the distribution of blue GCs,
while red GCs show density enhancements that are more centrally concentrated on
the host galaxies. We propose that the relatively small-scale density
structures in the red GCs are caused by galaxy-galaxy interactions, while the
extensive spatial distribution of blue GCs is due to stripping of GCs from the
halos of core massive galaxies by the Fornax gravitational potential. Our
investigations is based on density maps of candidate GCs extracted from the
multi-band VLT Survey Telescope (VST) survey of Fornax (FDS), identified in a
three-dimensional color space and further selected based on their $g$-band
magnitude and morphology.
