Post-Eruption Arcades and Interplanetary Coronal Mass Ejections |
| |
| Authors: | S Yashiro N Gopalswamy P Mäkelä S Akiyama |
| |
| Institution: | 1. The Catholic University of America, Washington, DC, 20064, USA
2. NASA Goddard Space Flight Center, Greenbelt, MD, 20771, USA
|
| |
| Abstract: | We compare the temporal and spatial properties of posteruption arcades (PEAs) associated with coronal mass ejections (CMEs) at the Sun that end up as magnetic cloud (MC) and non-MC events in the solar wind. We investigate the length, width, area, tilt angle, and formation time of the PEAs associated with 22 MC and 29 non-MC events and we find no difference between the two populations. According to current ideas on the relation between flares and CMEs, the PEA is formed together with the CME flux-rope structure by magnetic reconnection. Our results indicate that at the Sun flux ropes form during CMEs in association with both MC and non-MC events; however, for non-MC events the flux-rope structure is not observed in the interplanetary space because of the geometry of the observation, i.e. the location of the spacecraft when the structure passes through it. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
