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May 10 at 12:40 comment added Outis Nemo That's a good explanation; but given that Solar wind flows radially, how come fast CMEs are deflected "eastward" (in the reverse Solar physics convention of east and west, i.e. to the left as seen from Earth)? In papers about the deflection of CMEs it says that this occurs due to the Parker spiral. See e.g.: shorturl.at/apPU2 "Under the effect of the Parker spiral magnetic field, a fast CME will be blocked by the background solar wind ahead and deflected to the east, whereas a slow CME will be pushed by the following background solar wind and deflected to the west."
Mar 16, 2021 at 14:34 history answered honeste_vivere CC BY-SA 4.0