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We report the robust detection of coherent, localised deviations fromKeplerian rotation possibly associated with the presence of two giant planetsembedded in the disc around HD 163296. The analysis is performed using theDISCMINER channel-map modelling framework on $^{12}$CO $J=2-1$ DSHARP data. Notonly orbital radius, but also azimuth of the planets are retrieved by ourtechnique. One of the candidate planets, detected at $R=94\pm6$ au,$\phi=50\pm3^\circ$ (P94), is near the centre of one of the gaps in dustcontinuum emission, and is consistent with a planet mass of 1 $\rm M_{\rmJup}$. The other planet, located at $R=261\pm4$ au, $\phi=57\pm1^\circ$ (P261),is in the region where a velocity kink was previously observed in $^{12}$COchannel maps. Also, we provide a simultaneous description of the height andtemperature of the upper and lower emitting surfaces of the disc, and proposethe line width as a solid observable to track gas substructure. Usingazimuthally averaged line width profiles we detect gas gaps at $R=38$ au,$R=88$ au, and $R=136$ au, closely matching the location of their dust andkinematical counterparts. Furthermore, we observe strong azimuthal asymmetriesin line widths around the gas gap at $R=88$ au, possibly linked to turbulentmotions driven by the P94 planet. Our results confirm that the DISCMINER iscapable of finding localised, otherwise unseen velocity perturbations thanks toits robust statistical framework, but also that it is well suited for studiesof the gas properties and vertical structure of protoplanetary discs.

astrophysical journal/the astrophysical journal

A new planet candidate detected in a dust gap of the disc around HD  163296 through localised kinematic signatures. An observational validation of  the Discminer