Nine localised deviations from Keplerian rotation in the DSHARP
  circumstellar disks: Kinematic evidence for protoplanets carving the gaps
  We present evidence for localised deviations from Keplerian rotation, i.e.,
velocity "kinks", in 8 of 18 circumstellar disks observed by the DSHARP
program: DoAr 25, Elias 2-27, GW Lup, HD 143006, HD 163296, IM Lup, Sz 129 and
WaOph 6. Most of the kinks are detected over a small range in both radial
extent and velocity, suggesting a planetary origin, but for some of them
foreground contamination prevents us from measuring their spatial and velocity
extent. Because of the DSHARP limited spectral resolution and signal-to-noise
in the 12CO J=2-1 line, as well as cloud contamination, the kinks are usually
detected in only one spectral channel, and will require confirmation. The
strongest circumstantial evidence for protoplanets in the absence of higher
spectral resolution data and additional tracers is that, upon deprojection, we
find that all of the candidate planets lie within a gap and/or at the end of a
spiral detected in dust continuum emission. This suggests that a significant
fraction of the dust gaps and spirals observed by ALMA in disks are caused by
embedded protoplanets.
