SOHO/ACE observations of two consecutive CMEs from the same source region

SCHETTINO, G.; DASSO, S.; MANDRINI, C. H.; POLETTO, G.; ROMOLI, M.

Saint Malo

Conferencia; 12th Solar Wind Conference; 2009

On June 2, 2003, SOHO/LASCO coronagraph observed two CMEs at the West limb of the Sun, at 00.30 and 08:54 UT, respectively, which appeared to originate from the same source region. Both CMEs show the typical three-part structure. These events have been also observed by SOHO/UVCS, allowing us to infer their physical parameters. We also looked for interplanetary signatures of the CMEs in ACE `in situ´ observations but we did not find evidence of the ejected flux rope; however, the solar wind appeared significantly distorted, probably as a consequence of the influence of both CMEs on their surrounding interplanetary plasma.