ON THE IMPORTANCE OF THE POYNTING-ROBERTSON EFFECT ON METEOROIDS

A small generalization of the equation of motion for the Poynting-Robe rtson effect is tested in order to find the significance of new terms. The test is made for dust particles ejected at perihelia of the orbit of the comet Encke. The particles are released at the speed of 40 ms( -1) Gravitational perturbations of planets, Poynting-Robertson effect and solar corpuscular radiation (solar wind) are considered. Other non gravitational effects may be represented by new terms in the suggested form of the nongravitational force. Various values of normal and tran sversal components of the perturbing nongravitational force are used. The final results of numerical integrations are compared with those ob tained on the basis of the Poynting-Robertson effect.