LARGE-SCALE ACTIVE CORONAL PHENOMENA IN YOHKOH SXT IMAGES - IV - SOLAR-WIND STREAMS FROM FLARING ACTIVE REGIONS

We demonstrate limb events on the Sun in which growing flare loop syst ems are embedded in hot coronal structures looking in soft X-rays like fans of coronal rays. These structures are formed during the flare an d extend high into the corona. We analyze one of these events, on 28-2 9 August 1992, which occurred in AR 7270 on the eastern limb, and inte rpret these fans of rays either as temporary multiple ministreamers or plume-like structures formed as a result of restructuring due to a CM E. We suggest that this configuration reflects mass flow from the acti ve region into interplanetary space. This suggestion is supported by s ynoptic maps of solar wind sources constructed from scintillation meas urements which show a source of enhanced solar wind density at the pos ition of AR 7270, which disappears when 5 days following the event are removed from the synoptic map data. We also check synoptic maps for t wo other active regions in which existence of these fan-like structure s was indicated when the active regions crossed both the east and west limbs of the Sun, and both these regions appear to be sources of a de nsity enhancement in the solar wind.