Detailed study of event B. (a)–(e) Close-ups of the surrounding brightness temperatures at different time steps, t1 to t5from left to right, through the shock wave event. The time of the Tb peak is marked by t3 = 14:47:50. Here, t1, t2, t4 and t5 mark −80, −30, 30, and 80 s from the peak, respectively. The contour lines mark the half maximum of the maximum ΔTb peak and the blue crosses mark the center location. (f)–(g) Space-time diagrams for a vertical and horizontal slit across the FOV at the center location. The center location for time steps t1 to t5 is marked with blue dots connected with a line. Velocity slopes for 10 and 20 km s −1 are indicated by blue dotted and white dashed lines, respectively. (h) The time evolution of the brightness temperature of the center location, where the time steps t1 to t5 are indicated by blue dotted lines. Both the original data (black) and the averaged data (green) are shown. The horizontal and vertical dashed lines mark the event lifetime and brightness temperature excess, respectively.
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