New runaway O-type stars in the first Gaia Data Release
  We have detected 13 new runaway-star candidates of spectral type O combining
the TGAS (Tycho-Gaia Astrometric Solution) proper motions from Gaia Data
Release 1 (DR1) and the sample from GOSSS (Galactic O-Star Spectroscopic
Survey). We have also combined TGAS and Hipparcos proper motions to check that
our technique recovers many of the previously known O-type runaways in the
sample.
