Pinning down inelastic dark matter in the Sun and in direct detection
  We study the solar capture rate of inelastic dark matter with endothermic
and/or exothermic interactions. By assuming that an inelastic dark matter
signal will be observed in next generation direct detection experiments we can
set a lower bound on the capture rate that is independent of the local dark
matter density, the velocity distribution, the galactic escape velocity as well
as the scattering cross section. In combination with upper limits from neutrino
observatories we can place upper bounds on the annihilation channels leading to
neutrinos. We find that, while endothermic scattering limits are weak in the
isospin-conserving case, strong bounds may be set for exothermic interactions,
in particular in the spin-dependent case. Furthermore, we study the
implications of observing two direct detection signals, in which case one can
halo-independently obtain the dark matter mass and the mass splitting, and
disentangle the endothermic/exothermic nature of the scattering. Finally we
discuss isospin violation.
