Extended Data Fig. 2: Low time resolution 2D autocorrelation functions (ACFs) of the bursts detected from FRB 20200120E. | Nature Astronomy

Extended Data Fig. 2: Low time resolution 2D autocorrelation functions (ACFs) of the bursts detected from FRB 20200120E.

From: Burst timescales and luminosities as links between young pulsars and fast radio bursts

Extended Data Fig. 2: Low time resolution 2D autocorrelation functions (ACFs) of the bursts detected from FRB 20200120E.The alternative text for this image may have been generated using AI.

Panels f–j show the 2D ACF with colored contours overplotted representing the 2D Gaussian fit 1,2,3 and 4σ. The zero lag spike is not plotted. The ACF is computed using filterbank data generated with SFXC29, with time and frequency resolution of 8μs and 125 kHz, respectively. The data were dedispersed using a DM of 87.75 pc cm−3. Panels a–e show the frequency-averaged time ACF, with the frequency-averaged Gaussian fit overplotted, and similarly panels k–o show the time-averaged frequency ACF, with the time-averaged Gaussian fit overplotted. The time and frequency scales characterised in this plot, arise from the burst temporal width and frequency extent. The colored lines coordinate with other figures in this work (for example Figure 2 and Supplementary Figure 3).

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