Comparison of Coronal Mass Ejections Associated with Flares and Filaments

Using multipoint remote-sensing observations from multiple spacecraft, we have identified the source regions (active regions versus quiet Sun) and the association with flares or filaments for coronal mass ejections (CMEs) observed in situ near Earth in 2009-2013. We compare the solar wind plasma and magnetic field parameters as well as the heavy ion compositions and charge states ratios between the two groups of CMEs, one group originated from active regions and associated with flares, and the other group originated from quiet Sun and associated with filaments. To exclude the effect of the impact parameter of the spacecraft with respect to the CME core for the CME properties, we conduct the comparison separately for magnetic clouds (MCs) and non-MC CMEs. The results will help us better understanding the CME origins and their impact to the interplanetary properties and geoeffectiveness of CMEs.