ИСТИНА

The data obtained by the modern high sensitive EUV-XUV telescopes and photometers such as CORONAS-Photon/TESIS and SPHINX, STEREO/EUVI, PROBA2/SWAP, SDO/AIA provide good possibilities for studying small-scale solar activity (SSA), which is supposed to play an important role in heating of the corona and producing transient ows of the solar wind. During the recent unusually weak solar minimum, a large number of SSA events, such as week solar ares, small CMEs and CME-like ows were observed and recorded in the databases of ares (STEREO, SWAP, SPHINX) and CMEs (LASCO, CACTUS). On the other hand, the solar wind data obtained in this period by ACE, Wind, STEREO contain signatures of transient ICME-like structures which have shorter duration (<10h), weaker magnetic eld strength (<10 nT) and lower proton temperature than usual ICMEs. To verify the assumption that ICME-like transients may be associated with the SSA events we investigated the number of weak ares of C-class and lower detected by SPHINX in 2009 and STEREO/EUVI in 2010. The ares were classied on temperature and emission measure using the diagnostic means of SPHINX and Hinode/EIS and were confronted with the parameters of the solar wind (velocity, density, ion composition and temperature, magnetic eld, pitch angle distribution of the suprathermal electrons). The out ows of plasma associated with the ares were identied by their coronal signatures { CMEs (only in few cases) and dimmings. It was found that the mean parameters of the solar wind projected to the source surface for the times of the studied ares were typical for the ICME-like transients. The results support the suggestion that weak ares can be indicators of sources of transient plasma ows contributing to the slow solar wind at solar minimum, although these ows may be too weak to be considered as separate CMEs and ICMEs. The research leading to these results has received funding from the European Union's Seventh Programme for Research, Technological Development and