ERUPTIVE PROMINENCES AS SOURCES OF MAGNETIC CLOUDS IN THE SOLAR-WIND

Large amounts of coronal material are propelled outward into interplan etary space by Coronal Mass Ejections (CMEs). Thus one might expect to find evidence for expanding flux ropes in the solar wind as well. To prove this assumption magnetic clouds were analyzed and correlated wit h Halpha-observations of disappearing filaments. When clouds were foun d to be directly associated with a disappearing filament, the magnetic structure of the cloud was compared with that of the associated filam ent. Additionally the expansion of magnetic clouds was examined over a wide range of the heliosphere and compared with the expansion observe d for erupting prominences.