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We create a combined sample of 10,904 late and early-type galaxies from the2MTF and 6dFGSv surveys in order to accurately measure bulk flow in the localUniverse. Galaxies and groups of galaxies common between the two surveys areused to verify that the difference in zero-points is $<0.02$ dex. We introducea maximum likelihood estimator ($\eta$MLE) for bulk flow measurements whichallows for more accurate measurement in the presence non-Gaussian measurementerrors. To calibrate out residual biases due to the subtle interaction ofselection effects, Malmquist bias and anisotropic sky distribution, theestimator is tested on mock catalogues generated from 16 independentlarge-scale GiggleZ and SURFS simulations. The bulk flow of the local Universeusing the combined data set, corresponding to a scale size of 40 h$^{-1}$ Mpc,is $288\pm24$ km s$^{-1}$ in the direction $(l,b)=(296\pm6^{\circ},21\pm5^{\circ})$. This is the most accurate bulk flow measurement to date, andthe amplitude of the flow is consistent with the $\Lambda$CDM expectation forsimilar size scales.

Bulk flow in the combined 2MTF and 6dFGSv surveys