Statistical study on the relationship between halo
CME and coronal dimming
佚名
【期刊名称】《中国科学》 【年(卷),期】2010(000)007
【摘要】The data from SOHO/EIT and SOHO/LASCO observations are used to determine the relationship between coronal dimming and full halo CME (coronal mass ejection). The events of full halo CME examined in this study were observed by LASCO co-ronagraphs and taken from the CD AW CME catalog from 1996 to 2008. Dimming events are identified by using difference images taken by EIT at the 195 A passband. We found strong relationship between full halo CMEs and the coronal dimming events, with up to 93.3% of the front-side halo CMEs associated with the EIT 195 A dimming events. Full halo CMEs that show no clear signatures of dimming usually have lower sky plane velocities (<700 km/s) compared to the mean velocity of CMEs associated with dimming.
【总页数】5页(P.2024-2024)
【关键词】Sun;coronal;mass;ejection;coronal;dimming;extreme-ultraviolet 【作者】佚名 【作者单位】;
Statistical study on the relationship between halo CME and coronal dimming
