Fig. 4: The signal of interest, BLC1, from our search of Prox Cen.
From: A radio technosignature search towards Proxima Centauri resulting in a signal of interest
Here, we plot the dynamic spectrum around the signal of interest over an eight-pointing cadence of on-source and off-source observations. BLC1 passes our coincidence filters and persists for over 2 h. The red dashed line, purposefully offset from the signal, shows the expected frequency based on the detected drift rate (0.038 Hz s−1) and start frequency in the first panel. BLC1 is analysed in detail in a companion paper23.
