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Recent studies show that active-region (AR) upflowing plasma, observed by theEUV-Imaging Spectrometer (EIS), onboard Hinode, can gain access to openfield-lines and be released into the solar wind (SW) via magnetic-interchangereconnection at magnetic null-points in pseudo-streamer configurations. Whenonly one bipolar AR is present on the Sun and it is fully covered by theseparatrix of a streamer, such as AR 10978 in December 2007, it seems unlikelythat the upflowing AR plasma can find its way into the slow SW. However,signatures of plasma with AR composition have been found at 1 AU by Culhane etal. (2014) apparently originating from the West of AR 10978. We present adetailed topology analysis of AR 10978 and the surrounding large-scale coronabased on a potential-field source-surface (PFSS) model. Our study shows that itis possible for the AR plasma to get around the streamer separatrix and bereleased into the SW via magnetic reconnection, occurring in at least two mainsteps. We analyse data from the Nan\c{c}ay Radioheliograph (NRH) searching forevidence of the chain of magnetic reconnections proposed. We find a noise stormabove the AR and several varying sources at 150.9 MHz. Their locations suggestthat they could be associated with particles accelerated during the first-stepreconnection process and at a null point well outside of the AR. However, wefind no evidence of the second-step reconnection in the radio data. Our resultsdemonstrate that even when it appears highly improbable for the AR plasma toreach the SW, indirect channels involving a sequence of reconnections can makeit possible.

How Can Active Region Plasma Escape into the Solar Wind from below a Closed Helmet Streamer?