The Fornax Deep Survey with VST. IX. The catalog of sources in the FDS
  area, with an example study for globular clusters and background galaxies
  This paper continues the series of the Fornax Deep Survey (FDS). Following
the previous studies dedicated to extended Fornax cluster members, we present
the catalogs of compact stellar systems in the Fornax cluster as well as
extended background sources and point-like sources. We derive ugri photometry
of ~1.7 million sources over the $\sim$21 sq. degree area of FDS centered on
NGC1399. For a wider area, of $\sim$27 sq. degs extending in the direction of
NGC1316, we provide gri data for ~3.1 million sources. To improve the
morphological characterization of sources we generate multi-band image stacks
by coadding the best seeing gri-band single exposures with a cut at FWHM<=0.9
arcsec. We use the multi-band stacks as detection frames. The identification of
compact sources is obtained from a combination of photometric and morphometric
selection criteria taking as reference the properties of sources with
well-defined classification from the literature. We present a preliminary
analysis of globular cluster (GC) distributions in the Fornax area. The study
confirms and extends further previous results. We observe the inter-galactic
population of GCs, a population of mainly blue GCs centered on NGC1399, extends
over $\sim$0.9Mpc, with an ellipticity $\sim$0.65. Several sub-structures
extend over $\sim$0.5Mpc along various directions. Two of these structures do
not cross any bright galaxy; one of them appears to be connected to NGC1404, a
bright galaxy close to the cluster core and particularly poor of GCs. Using the
gri catalogs we analyze the GC distribution over the extended FDS area, and do
not find any obvious GC sub-structure bridging the two brightest cluster
galaxies, NGC1316 and NGC1399. Although NGC1316 is twice brighter of NGC1399 in
optical bands we estimate a factor of 3-4 richer GC population around NGC1399
compared to NGC1316, out to galactocentric distances of 40 arcmin
