  We perform a joint Bayesian inference of neutron-star mass and radius
constraints based on GW170817, observations of quiescent low-mass X-ray
binaries (QLMXBs), photospheric radius expansion X-ray bursts (PREs), and X-ray
timing observations of J0030+0451. With this data set, the form of the prior
distribution still has an impact on the posterior mass-radius (MR) curves and
equation of state (EOS), but this impact is smaller than recently obtained when
considering QLMXBs alone. We analyze the consistency of the electromagnetic
data by including an "intrinsic scattering" contribution to the uncertainties,
and find only a slight broadening of the posteriors. This suggests that the
gravitational-wave and electromagnetic observations of neutron-star structure
are providing a consistent picture of the neutron-star mass-radius curve and
the EOS.
