Gravitational lensing effect of galaxy clusters and anisotropy of cosmic background radiation

In this paper we investigate the effect on the anisotropy of CBR temperatur e fluctuation by the intrinsic transverse motions of galaxy clusters acting as gravitational lenses randomly distributed in space. The Hernquist model is used for the density structure and gravitational lensing of the cluster s. The anisotropy is calculated for 1) the standard cold dark matter model and 2) Peebles' isocurvature baryon model. The calculated values, higher in 2) than in 1), depend sensitively on the bias parameter and are below Kell erman's (1986) observed upper limits.