Scenario of creation of the reversed open field line (A–C) and a flux rope (D) due to the solar wind velocity shear. The reversed but not reconnected field lines are shown in blue. The reconnected field line is shown in black. The detached part of the reconnected field line, creating a flux rope, is shown in brown. The numbers in the panel D correspond to the intervals in Figs. 2 and 3. See more details in the main text.