Streamer Belt and Chains as the Main Sources of Quasi-Stationary Slow Solar Wind |
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Authors: | M Eselevich V Eselevich K Fujiki |
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Institution: | (1) Institute of Solar-Terrestrial Physics, Irkutsk, Russia;(2) Solar-Terrestrial Environment Laboratory, Nagoya University, Toyokawa, Japan |
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Abstract: | Synoptic maps of white-light coronal brightness from SOHO/LASCO C2 and distributions of solar wind velocity obtained from
interplanetary scintillation are studied. Regions with velocity V≈300 – 450 km s−1 and increased density N>10 cm−3, typical of the “slow” solar wind originating from the belt and chains of streamers, are shown to exist at Earth’s orbit,
between the fast solar wind flows (with a maximum velocity V
max ≈450 – 800 km s−1). The belt and chains of streamers are the main sources of the “slow” solar wind. As the sources of “slow” solar wind, the
contribution from the chains of streamers may be comparable to that from the streamer belt. |
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