PATTERN SPEED OF THE STELLAR BAR IN NGC-7479

We study the pattern speed of the bar in NGC 7479 by comparing observa tions with numerical simulations of gas flow in a two-dimensional grav itational potential, derived from observations. The best agreement bet ween the observations and the modelling is achieved for the fast bar p attern speed of 27 km s(-1) kpc(-1), when the corotation radius is at 50 arcsec, i,e, 1.1 times the radial length of the bar. This result is supported by the gas and dust lane morphologies, star formation distr ibution, projected velocity field and overall morphology, We find that star formation is most likely to be triggered close to the large-scal e shocks and dust lanes in the bar. The net gas inflow rate in the sim ulations at l-kpc radius is 4-6 M. yr(-1) at intermediate times.