Jerey D. P. Kenney, 4

We present images of the barred galaxy NGC 7479 in the optical and near infrared broad{bands B; V;R; J;H;K, and images in H+[N II] and CO(J=1!0) emission. The H and CO emission in the bar are coincident and conned to narrow linear features that are oset from the center of the bar as observed in the near infrared. We estimate the gravitational potential from the K image, which provides an estimate of the torque on the gas at the position of the CO emission in the bar. We nd that the implied gas in ow velocity derived from the torque is 10 20 km s 1. Our in ow velocity is independent of the large streaming motions which can be observed in CO and HI