SH53A-2464
Radio emission before, during and after the interaction between two coronal mass ejections in the interplanetary medium
Friday, 18 December 2015
Poster Hall (Moscone South)
Tatiana Niembro1, Alejandro Lara1, Alejandro Raga1 and Ricardo González2, (1)Universidad Nacional Autonoma de Mexico, Mexico City, Mexico, (2)Instituto de Radioastronomía y Astrofísica, UNAM, Morelia, Michoacán, Mexico
Abstract:
We present a study of representative cases of interaction between two coronal mass ejection traveling into the interplanetary medium and directed towards the Earth. With a numerical model we obtained the density as function of the heliospheric distance and we estimated the radio wave frequencies expected before, during and after the collision of each of the structures related to the interaction. We improved our numerical model to distinguish the plasma of each ICME, before, during and after the collision. During the process a discontinuity is formed and we study its evolution till it reaches the Earth at 1 AU. We compared our results with the low frequency radio emissions observed by WIND/WAVES.
