Low-DM Dispersed Transients Found
Because the initial premise of the HawkRAO analysis was based on the possibility that the archive data may contain dispersed transients of unknown DM, the search technique adopted covered a wide range of DMs. That is, it was not a targeted search for Crab Pulsar Giant Pulses (GPs).
Normally testing over a range of DMs is computationally expensive - but a fast search algorithm was developed which is nearly two orders of magnitude faster.
Low-DM Dispersed Transients in HawkRAO Archive Data
As more files were processed it became clear there were many dispersed transients in the HawkRAO archive data displaying dispersion measures ranging from 40 to 70.
Some examples at DM=52.9, 53.1 and 44.3 are shown below.