Summary plot of the linear polarisation search. The left panel shows the RM of the single pulse candidates versus time with the size of the open circle marker indicating larger S/N (σ) with larger marker. The middle panel shows the number of single pulse detection per bin of RM. The panel on the right shows σ of the burst as function of its RM with a color scale corresponding to the detection DM. For clarity, the RM-range (y-axis) shown on all panels is restricted to −250 000; +250 000 rad m⁻². As described in Section 3.2, candidates with |RM| <10 000 rad m⁻² are excised. The detection of several bright pulses at DM of 1800 pc cm⁻³ and peaking at RM=−66 000 rad m⁻² correspond to single pulses emitted by the SGR J1745−2900.