The Recent Growth History of the Fornax Cluster Derived from
  Simultaneous Sloshing and Gas Stripping: Simulating the Infall of NGC 1404
  We derive the recent growth history of the Fornax Cluster, in particular the
recent infall of the giant elliptical galaxy NGC 1404. We show, using a simple
cluster minor merger simulation tailored to Fornax and NGC 1404, that a second
or more likely third encounter between the two reproduces all main merger
features observed in both objects; we firmly exclude a first infall scenario.
Our simulations reveal a consistent picture: NGC 1404 passed by NGC 1399 about
1.1 - 1.3 Gyrs ago from the NE to the SW and is now almost at the point of its
next encounter from the S. This scenario explains the sloshing patterns
observed in Fornax - a prominent northern cold front and an inner southern cold
front. This scenario also explains the truncated atmosphere, the gas stripping
radius of NGC 1404, and its faint gas tail. Independent of the exact history,
we can make a number of predictions. A detached bow shock south of NGC 1404
should exist which is a remnant of the galaxy's previous infall at a distance
from NGC 1404 between 450 - 750 kpc with an estimated Mach number between 1.3
and 1.5. The wake of NGC 1404 also lies S of the galaxy with enhanced
turbulence and a slight enhancement in metallicity compared to the undisturbed
regions of the cluster. SW of NGC 1404, there is likely evidence of old
turbulence originating from the previous infall. No scenario predicts enhanced
turbulence outside of the cold front north west of the cluster center.
