Moving solar radio bursts and their association with coronal mass ejections

Context. Solar eruptions, such as coronal mass ejections (CMEs), are often accompanied by accelerated electrons that can in turn emit radiation at radio wavelengths. This is observed solar bursts. The main types of bursts associated with CMEs type II and IV sometimes show movement the direction CME expansion, either radially or laterally. However, propagation respect to has only been studied for individual events. Aims. Here, we perform a statistical study 64 moving aim determine how done order ascertain usefulness using images estimating early expansion. Methods. Using imaging from Nançay Radioheliograph (NRH), constructed list bursts, defined move across plane sky single frequency. We define their association properties white-light coronagraph observations. also connection classical burst categorisation. Results. find just over quarter half occurred during NRH observing windows Cycle 24 emission. All but one white–light majority (90%) wide (> 60° width). In particular, all corresponding IIs CMEs; however, unexpectedly, slow (< 500 km s ?1 ). On other hand, fast Conclusions. observations presented here sources almost exclusively CMEs. events CMEs, indicating strong lateral expansion stages eruption may play key role occurrence emission observed.