Scattering Effects on Type II and Type III Bursts

Type II and type III radio bursts are generated by beams of suprathermal electrons accelerated at shock waves ahead of coronal mass ejections, and at reconnection sites of solar flares, respectively. Since propagation of radio waves in the interplanetary medium is strongly affected by random electron density fluctuations, solar radio bursts provide us with a unique diagnostic tool for solar wind remote plasma measurements. Here, we performed Monte Carlo simulations to study the role of scattering by density inhomogeneities on apparent locations and source sizes of radio emissions generated in the interplanetary medium. We have found that the scattering is responsible for radio sources to be apparently shifted further from the Sun. We introduce a wave vector correction including this effect to improve triangulation of type II and type III radio bursts with possible applications in space weather forecasting.