Tidal disruption of fuzzy dark matter subhalo cores
  We study tidal stripping of fuzzy dark matter (FDM) subhalo cores using
simulations of the Schr\"{o}dinger-Poisson equations and analyze the dynamics
of tidal disruption, highlighting the differences with standard cold dark
matter. Mass loss outside of the tidal radius forces the core to relax into a
less compact configuration, lowering the tidal radius. As the characteristic
radius of a solitonic core scales inversely with its mass, tidal stripping
results in a runaway effect and rapid tidal disruption of the core once its
central density drops below $4.5$ times the average density of the host within
the orbital radius. Additionally, we find that the core is deformed into a
tidally locked ellipsoid with increasing eccentricities until it is completely
disrupted. Using the core mass loss rate, we compute the minimum mass of cores
that can survive several orbits for different FDM particle masses and compare
it with observed masses of satellite galaxies in the Milky Way.
