Non-circular flows in HIghMass galaxies in a test of the late accretion hypothesis

We present H-alpha velocity maps for the HIghMass galaxies UGC 7899, 8475, 9037 and 9334, obtained with SITELLE Imaging Fourier Transform Spectrometer on Canada-France-Hawaii Telescope, to search kinematic signatures of late gas accretion explain their large atomic reservoirs. The 9037, 9334 are amenable disk wide radial flow searches DiskFit algorithm, those 7899 also inner-disk analyses. find no evidence outer flows down Vr ~ 20 km/s in but hints such 7899. Conversely, we clear inner (r 5 kpc) noncircularities that can be modelled as either bisymmetric (which could produced by a bar) or flows. Comparing these models structure implied photometric disk-bulge-bar decompositions, favour an bar 9037. With warp, is best candidate among examined, additional modelling required disentangle potential degeneracies between H I maps. Our provides only weak = constraints hot-mode unusually high content galaxies.