Luminosity and mass models for the barred spiral galaxies NGC 7741, NGC 3359 and NGC 7479

From two-dimensional photometric data and the radial velocity field of the ionized gas, luminosity distributions and mass models of three late-type barred spiral galaxies, NGC 7741, NGC 3359, and NGC 7479, are obtained. It is shown that the isoradial velocities clearly exhibit the classical S-shaped distortion, expected from the gravitational pull of the bar. The near equality of the mass /luminosity ratios of the stellar bar and its surrounding disk is seen for the first two galaxies, but a significantly lower value is seen for NGC 7479.