Testing Modified Gravity (MOG) with gas-dominated galaxies
  We compare the MOG and MOND predictions of the Tully-Fisher relationship to observations using gas-rich galaxies for which the baryonic mass can be estimated accurately. We find that both theories are in good agreement with the data. Future observations of large, gas-rich galaxies may offer a means to distinguish between these two theories. 
J. W. Moffat and Viktor T. Toth
astro-ph.GA gr-qc