Hubble flow around Fornax cluster of galaxies
  Aims. This work aims to provide a new mass estimate for the Fornax cluster
and the Fornax-Eridanus complex, avoiding methods like the virial or fits of
X-ray emission profile, which assume that the system is in equilibrium,
probably not the case of Fornax, still in process of formation.
  Methods. Our mass estimate is based on the determination of the zero-velocity
surface which, in the context of the spherical infall model permits an
evaluation of the total mass inside such a surface. The zero-velocity surface
radius R0 was estimated either by a running median procedure or by fitting the
data to the velocity field expected from the spherical model, including effects
of the cosmological constant. The velocity field in a region within 20 Mpc of
the Fornax center was mapped using a list of 109 galaxies whose distances have
an average accuracy of 0.31 mag in their distance modulus.
  Results. Our analysis indicates that the mass of the Fornax cluster itself
inside a radius of [2.62-5.18] Mpc is [0.40-3.32] \times 10^14 Modotwhile the
mass inside [3.88-5.60] Mpc, corresponding to the Fornax-Eridanus complex is
[1.30-3.93] \times 10^14 M\odot.
