Fig. 2.
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Two examples of small-scale density structures observed by WISPR-I on April 26, 2021, 22:57 UT (top) and March 1, 2022, 15:15 UT (bottom). The helioprojective-radial coordinate grid is again represented in the same format as in Fig. 1. The green lines represent the pixels extracted to build the time–distance (J-)maps shown in Fig. 4.
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